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Sample records for agency epa arsenic

  1. U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) PROGRAM: ARSENIC TREATMENT TECHNOLOGIES

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) Environmental Technology Verification (ETV) program evaluates the performance of innovative air, water, pollution prevention and monitoring technologies that have the potential to improve human health and the environment. This techn...

  2. U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) PROGRAM: ARSENIC MONITORING TECHNOLOGIES

    EPA Science Inventory

    The U.S. Environmental Protection Agency Environmental Technology Verification (ETV) program evaluates the performance of innovative air, water, pollution prevention and monitoring technologies that have the potential to improve human health and the environment. This technology ...

  3. Costs of Arsenic Removal Technologies for Small Water Systems: U.S. EPA Arsenic Removal Technology Demonstration Program

    EPA Science Inventory

    As part of the Arsenic Rule Implementation Research Program, between July 2003 and July 2011, the U.S. environmental Protection Agency (EPA) conducted 50 full-scale demonstration projects on treatment systems removing arsenic from drinking water in 26 states throughout the U.S. ...

  4. CAPITAL COSTS OF ARSENIC REMOVAL TECHNOLOGIES, U.S. EPA ARSENIC REMOVAL TECHNOLOGY DEMONSTRATION PROGRAM ROUND 1

    EPA Science Inventory

    On January 18, 2001, the U.S. Environmental Protection Agency (EPA) finalized the maximum contaminant level (MCL) for arsenic at 0.01 mg/L. EPA subsequently revised the rule text to express the MCL as 0.010 mg/L (10 μg/L). The final rule requires all community and non-transient, ...

  5. Arsenic/Radium Removal from Drinking Water by the HMO Process, U.S. EPA Demonstration Project at Greenville, WI

    EPA Science Inventory

    In 2003, the Town of Greenville, Wisconsin was selected for the Round 2 U.S. Environmental Protection Agency (EPA) Arsenic Demonstration Program and a Kinetico Macrolite® pressure filtration system was selected for its ability to remove arsenic. Well reconstruction prior to the ...

  6. AN UPDATE ON SOME ARSENIC PROGRAMS AT THE US EPA

    EPA Science Inventory

    An Update on Some Arsenic Projects at the United States

    Environmental Protection Agency*

    Charles O. Abernathy1, Michael Beringer2, Rebecca L Calderon3,

    Timothy McMahon4 and Erik Winchester3

    Offices of Science and Technology1, Solid Waste...

  7. AN UPDATE ON SOME ARSENIC PROJECTS AT THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

    EPA Science Inventory

    ABSTRACT Exposure to arsenic (As) has been reported to cause many adverse health effects in humans, including internal and skin cancers, vascular, neurological and dermal manifestations. Some Offices of the US Environmental Protection Agency (EPA) deal with As and selected activ...

  8. ARSENIC IN DRINKING WATER SUPPLY WELLS: A MULTI-AGENCY COMMUNITY-BASED, RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (ųg/L) occur in numerous aquifers around the United States. One such aquifer is the Central ...

  9. ARSENIC IN DRINKING WATER SUPPLY WELLS: A MULTI-AGENCY, COMMUNITY-BASED, RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (µg/L) occur in numerous aquifers around the United States. One such aquifer is the Central ...

  10. 77 FR 46089 - Agency Information Collection Activities; Proposed Collection; Comment Request; EPA's ENERGY STAR...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-02

    ... AGENCY Agency Information Collection Activities; Proposed Collection; Comment Request; EPA's ENERGY STAR... this action are participants in EPA's ENERGY STAR Program in the Commercial and Industrial Sectors. Title: Information Collection Activities Associated with EPA's ENERGY STAR Program in the Commercial...

  11. Arsenic Removal from Drinking Water by Coagulation/Filtration U.S. EPA Demonstration Project at Sandusky, MI Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the U.S. Environmental Protection Agency (EPA) arsenic removal technology demonstration project at the City of Sandusky, MI facility. The objectives of the project were to evaluate: 1) the effect...

  12. Arsenic Removal from Drinking Water by Iron Removal and Adsorptive Media U.S. EPA Demonstration Project at Stewart, MN, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the one-year U.S. Environmental Protection Agency (EPA) arsenic removal technology demonstration project at the Stewart, MN facility. The main objective of the project was to evaluate the effectiveness ...

  13. Arsenic Removal from Drinking Water by Iron Removal U.S. EPA Demonstration Project at Sabin, MN Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from January 30, 2006 to April 29, 2007 at the U.S. Environmental Protection Agency (EPA) Arsenic Removal Technology Demonstration site in Sabin, MN. The main objective of the project was to evaluate the eff...

  14. Asbestos worker protection. Environmental Protection Agency (EPA). Final rule.

    PubMed

    2000-11-15

    In this Final Rule, EPA is amending both the Asbestos Worker Protection Rule (WPR) and the Asbestos-in-Schools Rule. The WPR amendment protects State and local government employees from the health risks of exposure to asbestos to the same extent as private sector workers by adopting for these employees the Asbestos Standards of the Occupational Safety and Health Administration (OSHA). The WPR's coverage is extended to State and local government employees who are performing construction work, custodial work, and automotive brake and clutch repair work. This final rule cross-references the OSHA Asbestos Standards for Construction and for General Industry, so that future amendments to these OSHA standards are directly and equally effective for employees covered by the WPR. EPA also amends the Asbestos-in-Schools Rule to provide coverage under the WPR for employees of public local education agencies who perform operations, maintenance, and repair activities. EPA is issuing this final rule under section 6 of the Toxic Substances Control Act (TSCA).

  15. 76 FR 50726 - Agency Information Collection Activities; Proposed Collection; Comment Request; EPA Strategic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-16

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Agency Information Collection Activities; Proposed Collection; Comment Request; EPA Strategic Plan.... Title: EPA Strategic Plan Information on Source Water Protection. ICR numbers: EPA ICR No. 1816.05,...

  16. GROUND WATER TREATMENT PROCESSES FOR ARSENIC REMOVAL

    EPA Science Inventory

    In 1975 EPA established a maximum contaminant level (MCL) for arsenic at 0.05 mg/L. In 1996, Congress amended the SDWA and these amendments required that EPA develop an arsenic research strategy and publish a proposal to revise the arsenic MCL by January 2000. The Agency proposed...

  17. 7 CFR 650.21 - Working relations with the U.S. Environmental Protection Agency (EPA) and related State...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Protection Agency (EPA) and related State environmental agencies. 650.21 Section 650.21 Agriculture... with the U.S. Environmental Protection Agency (EPA) and related State environmental agencies. (a) Background. The authorities and missions of NRCS, EPA, and state environmental agencies make it...

  18. 7 CFR 650.21 - Working relations with the U.S. Environmental Protection Agency (EPA) and related State...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Protection Agency (EPA) and related State environmental agencies. 650.21 Section 650.21 Agriculture... with the U.S. Environmental Protection Agency (EPA) and related State environmental agencies. (a) Background. The authorities and missions of NRCS, EPA, and state environmental agencies make it...

  19. Survey of EPA and Other Federal Agency Scientific Data Management Policies and Guidance, 2009

    EPA Science Inventory

    The purpose of this study is to compile and assess internal Environmental Protection Agency (EPA) scientific data management (SDM) policies and guidance. Additionally, this study examines SDM policies and guidance from other Federal Agencies engaged in science and technology, an...

  20. THE US EPA WORKSHOP ON RESEARCH AND RISK ASSESSMENT FOR ARSENIC

    EPA Science Inventory

    The U.S. Environmental Protection Agency sponsored an international Workshop on Research and Risk Assessment for Arsenic at the National Conservation Training Center in Shepherdstown, West Virginia, from May 31 to June 2, 2006. This special issue of Toxicology and Applied Pharma...

  1. ARSENIC IN DRINKING WATER: USING SOUND SCIENCE FOR RISK MANAGEMENT AND ASSISTING COMMUNITY DECISION-MAKERS - A MULTI-AGENCY, COMMUNITY-BASED RESEARCH PROJECT

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (U.S. EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (ug/L) occur in numerous aquifers around the United States. One such aquifer is the Cen...

  2. 75 FR 27554 - Science Advisory Board Staff Office; Request for Nominations of Experts for the SAB Arsenic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-17

    ... AGENCY Science Advisory Board Staff Office; Request for Nominations of Experts for the SAB Arsenic Review... SAB panel to review EPA's Integrated Risk Information System (IRIS) assessment for inorganic arsenic... INFORMATION: EPA is revising an assessment for arsenic in support of EPA's Integrated Risk Information...

  3. 40 CFR 13.23 - Salary offset when EPA is not the creditor agency.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Salary offset when EPA is not the creditor agency. 13.23 Section 13.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL... to the Director, Financial Management Division (2734R), U.S. Environmental Protection Agency,...

  4. 40 CFR 13.23 - Salary offset when EPA is not the creditor agency.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Salary offset when EPA is not the creditor agency. 13.23 Section 13.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL... to the Director, Financial Management Division (2734R), U.S. Environmental Protection Agency,...

  5. 40 CFR 13.23 - Salary offset when EPA is not the creditor agency.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Salary offset when EPA is not the creditor agency. 13.23 Section 13.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL... to the Director, Financial Management Division (2734R), U.S. Environmental Protection Agency,...

  6. 40 CFR 13.23 - Salary offset when EPA is not the creditor agency.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Salary offset when EPA is not the creditor agency. 13.23 Section 13.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL... to the Director, Financial Management Division (2734R), U.S. Environmental Protection Agency,...

  7. 40 CFR 13.23 - Salary offset when EPA is not the creditor agency.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Salary offset when EPA is not the creditor agency. 13.23 Section 13.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL... to the Director, Financial Management Division (2734R), U.S. Environmental Protection Agency,...

  8. U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) PROGRAM: MERCURY CONTINUOUS EMISSION MONITORS

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) Environmental Technology Verification (ETV) program evaluates the performance of innovative air, water, pollution prevention and monitoring technologies that have the potential to improve human health and the environment. This techn...

  9. THE EPA REMOTE SENING ARCHIVE: A UNIQUE AGENCY RESOURCE

    EPA Science Inventory

    Often environmental issues need to have a historical perspective, to look back into the past.
    Remotely sensed imagery is one way to see the land and what happened in a previous time. The EPA is often responsible to look into the past to facilitate a better future for the envi...

  10. 40 CFR 57.107 - The State or local agency's transmittal to EPA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 6 2012-07-01 2012-07-01 false The State or local agency's transmittal to EPA. 57.107 Section 57.107 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) PRIMARY NONFERROUS SMELTER ORDERS General § 57.107 The State or local...

  11. 40 CFR 57.107 - The State or local agency's transmittal to EPA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 5 2010-07-01 2010-07-01 false The State or local agency's transmittal to EPA. 57.107 Section 57.107 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) PRIMARY NONFERROUS SMELTER ORDERS General § 57.107 The State or local...

  12. 40 CFR 57.107 - The State or local agency's transmittal to EPA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 6 2014-07-01 2014-07-01 false The State or local agency's transmittal to EPA. 57.107 Section 57.107 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) PRIMARY NONFERROUS SMELTER ORDERS General § 57.107 The State or local...

  13. 40 CFR 57.107 - The State or local agency's transmittal to EPA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 6 2013-07-01 2013-07-01 false The State or local agency's transmittal to EPA. 57.107 Section 57.107 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) PRIMARY NONFERROUS SMELTER ORDERS General § 57.107 The State or local...

  14. 40 CFR 57.107 - The State or local agency's transmittal to EPA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 5 2011-07-01 2011-07-01 false The State or local agency's transmittal to EPA. 57.107 Section 57.107 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) PRIMARY NONFERROUS SMELTER ORDERS General § 57.107 The State or local...

  15. Statutory complexity disguises agency capture in Citizens Coal Council v. EPA

    SciTech Connect

    Mullen, R.

    2007-07-01

    In Citizens Coal Council v. EPA, an en banc panel for the Sixth Circuit Court of Appeals considered a challenge to EPA regulations promulgated pursuant to the Clean Water Act (CWA). The EPA promulgated the regulations in an attempt to incentivize coal companies to remine once abandoned mine sites. Petitioners, two nonprofit environmental organizations, claimed that the regulations violated the Clean Water Act and Administrative Procedure Act by allowing coal companies to remine without adhering to any enforceable pollution limitations. The EPA countered that more remining would improve water quality at abandoned sites. The Sixth Circuit rejected Petitioners' claims, finding that the EPA's regulations were reasonably consistent with the CWA's goal of restoring the integrity of the nation's waters. In so holding, the court struggled to understand the meaning of the CWA's complex procedural and technical language, and allowed the EPA to justify the rule based on the CWA's broad statement of purpose. Such superficial judicial review sets a dangerous precedent in environmental law, because it exacerbates the risk of agency capture. A captured agency promulgates regulations that benefit-industry, not the environment. Without the judiciary acting as a meaningful check against agency capture, the public loses a valuable tool in the fight against major-industrial polluters like the domestic coal industry. Citizens Coal Council therefore stands as a cautionary tale, a warning sign that the judiciary may be unable to identify agency capture where the regulations at issue are promulgated pursuant to a complex statute like the Clean Water Act.

  16. US EPA: A USER AGENCY PERSPECTIVE ON POLAR SATELLITE OBSERVATIONS

    EPA Science Inventory

    The Agency uses satellite sensor observations in its work on measuring, monitoring and modeling the environment and human health. It generates observations in collaboration with states, local and regional governments, tribes and others, and is a consumer of observations from a v...

  17. Arsenic and Nitrate Removal from Drinking Water by Ion Exchange U.S. EPA Demonstration Project at Vale, OR - Final Performance Evaluation Report

    EPA Science Inventory

    As part of the EPA Arsenic Removal Technology Demonstration Program, a 540-gal/min (gpm) ion exchange (IX) system proposed by Kinetico was selected for demonstration at Vale, OR to remove arsenic and nitrate from a groundwater supply to meet their respective maximum contaminant l...

  18. TREATMENT TECHNOLOGIES FOR ARSENIC REMOVAL

    EPA Science Inventory

    The United States Environmental Protection Agency (US EPA) recently reduced the arsenic maximum contaminant level (MCL) from 0.050 mg/L to 0.010 mg/L. In order to increase arsenic outreach efforts, a summary of the new rule, related health risks, treatment technologies, and desig...

  19. 77 FR 9882 - Arsenic Small Systems Compliance and Alternative Affordability Criteria Working Group; public...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-21

    ... AGENCY 40 CFR Parts 141 and 142 Arsenic Small Systems Compliance and Alternative Affordability Criteria... meeting. SUMMARY: EPA is holding an initial meeting of the Arsenic Small Systems Working Group to provide... Appropriations Act of 2012 directs the Environmental Protection Agency to convene an Arsenic Small...

  20. EPA (Environmental Protection Agency) initiates wetlands research in the Pacific Northwest

    SciTech Connect

    Kentula, M.E.

    1987-01-01

    In January 1986 the U.S. Environmental Protection Agency (EPA) adopted a Wetlands Research Plan (Zedler and Kentula 1986). The plan describes the research necessary to assist the Agency in implementing its responsibilities for protecting wetlands, including Section 404 of the Clean Water Act. Three research needs were identified and an emphasis on freshwater systems was recommended. Research will be implemented to: (1) assess the water quality functions of wetlands; (2) develop methods to predict the cumulative impact(s) associated with wetland loss; and (3) improve the formulation and evaluation of wetland creation/ restoration projects required as mitigation for unavoidable impacts.

  1. EPA STUDIES OF ARSENIC SPECIATION IN SEAFOOD MATRICES WITH AN EMPHASIS ON EXTRACTABILITY AND ARSENOSUGAR INTEGRITY

    EPA Science Inventory

    The anthropogenic and geological occurrence of arsenic (As) results in human exposure to a potentially carcinogenic element. The two predominant pathways to As exposure are drinking water (DW) and dietary ingestion (DI). DW exposures are almost exclusively toxic inorganic As. ...

  2. 77 FR 15335 - Notice of Public Meetings: Arsenic Small Systems Compliance and Alternative Affordability...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... AGENCY 40 CFR Parts 141 and 142 Notice of Public Meetings: Arsenic Small Systems Compliance and... of Public Meetings. SUMMARY: EPA is holding three meetings of the Arsenic Small Systems Working Group to discuss barriers to the use of arsenic treatment technologies and alternative...

  3. Arsenic Removal from Drinking Water by Coagulation/Filtration U.S. EPA Demonstration Project at Sandusky, MI. Six-Month Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the EPA arsenic removal technology demonstration project at the City of Sandusky, MI facility. The objectives of the project are to evaluate 1) the effectiveness of Siemen...

  4. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Taos, NM, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the EPA arsenic removal technology demonstration project at the Town of Taos in New Mexico. The main objective of the project was to evaluate the effectiveness of Severn Trent Services’ (STS) SORB 33™ ad...

  5. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Alvin, TX, Six-Month Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the first six months of the EPA arsenic removal technology demonstration project at the Oak Manor Municipal Utility District (MUD) facility at Alvin, TX. The main objective of the project is to evaluate...

  6. Arsenic Removal from Drinking Water by Adsorptive Media. U.S. EPA Demonstration Project at Oak Manor Municipal Utility District at Alvin, TX. Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the EPA arsenic removal technology demonstration project at the Oak Manor Municipal Utility District (MUD) facility in Alvin, TX. The objectives of the project were to evaluate 1) the effectiveness of a ...

  7. Meeting Materials for the 4th NRC Meeting on the Guidance for and the Review of EPA's Toxicological Assessment of Inorganic Arsenic

    EPA Science Inventory

    On December 2-3, 2015, the National Research Council (NRC) hosted the 4th meeting of the committee formed to peer review the draft IRIS assessment of inorganic arsenic. EPA presented background and overview materials during the public session on December 2nd. This information co...

  8. Arsenic Removal from Drinking Water by Iron Removal. U.S. EPA Demonstration Project at Sabin, MN. Six-Month Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the EPA arsenic removal technology demonstration project at the Sabin, MN. The main objective of the project is to evaluate the effectiveness of the Kinetico FM-248-AS ars...

  9. Arsenic

    MedlinePlus

    ... and minerals. Arsenic compounds are used to preserve wood, as pesticides, and in some industries. Arsenic can ... Breathing sawdust or burning smoke from arsenic-treated wood Living in an area with high levels of ...

  10. 7 CFR 650.21 - Working relations with the U.S. Environmental Protection Agency (EPA) and related State...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 6 2012-01-01 2012-01-01 false Working relations with the U.S. Environmental Protection Agency (EPA) and related State environmental agencies. 650.21 Section 650.21 Agriculture Regulations of the Department of Agriculture (Continued) NATURAL RESOURCES CONSERVATION SERVICE, DEPARTMENT...

  11. Arsenic Content in American Wine.

    PubMed

    Wilson, Denise

    2015-10-01

    Recent studies that have investigated arsenic content in juice, rice, milk, broth (beef and chicken), and other foods have stimulated an interest in understanding how prevalent arsenic contamination is in the U.S. food and beverage supply. The study described here focused on quantifying arsenic levels in wine. A total of 65 representative wines from the top four wine-producing states in the U.S. were analyzed for arsenic content. All samples contained arsenic levels that exceeded the U.S. Environmental Protection Agency (U.S. EPA) exposure limit for drinking water of 10 parts per billion (ppb) and all samples contained inorganic arsenic. The average arsenic detected among all samples studied was 23.3 ppb. Lead, a common co-contaminant to arsenic, was detected in 58% of samples tested, but only 5% exceeded the U.S. EPA exposure limit for drinking water of 15 ppb. Arsenic levels in American wines exceeded those found in other studies involving water, bottled water, apple juice, apple juice blend, milk, rice syrup, and other beverages. When taken in the context of consumption patterns in the U.S., the pervasive presence of arsenic in wine can pose a potential health risk to regular adult wine drinkers. PMID:26591333

  12. 75 FR 7477 - Draft Toxicological Review of Inorganic Arsenic: In Support of the Summary Information on the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-19

    ... AGENCY Draft Toxicological Review of Inorganic Arsenic: In Support of the Summary Information on the... document titled, ``Toxicological Review of Inorganic Arsenic: In Support of the Summary Information on the... (ORD). The Toxicological Review of Inorganic Arsenic was submitted to the EPA's Science Advisory...

  13. Analysis of 70 Environmental Protection Agency priority pharmaceuticals in water by EPA Method 1694.

    PubMed

    Ferrer, Imma; Zweigenbaum, Jerry A; Thurman, E Michael

    2010-09-01

    The U.S. Environmental Protection Agency (EPA) Method 1694 for the determination of pharmaceuticals in water recently brought a new challenge for treatment utilities, where pharmaceuticals have been reported in the drinking water of 41-million Americans. This proposed methodology, designed to address this important issue, consists of solid-phase extraction (SPE) followed by liquid chromatography-mass spectrometry (LC/MS-MS) using triple quadrupole. Under the guidelines of Method 1694, a multi-residue method was developed, validated, and applied to wastewater, surface water and drinking water samples for the analysis of 70 pharmaceuticals. Four distinct chromatographic gradients and LC conditions were used according to the polarity and extraction of the different pharmaceuticals. Positive and negative ion electrospray were used with two MRM transitions (a quantifier and a qualifier ion for each compound), which adds extra confirmation not included in the original Method 1694. Finally, we verify, for the first time, EPA Method 1694 on water samples collected in several locations in Colorado, where positive identifications for several pharmaceuticals were found. This study is a valuable indicator of the potential of LC/MS-MS for routine quantitative multi-residue analysis of pharmaceuticals in drinking water and wastewater samples and will make monitoring studies much easier to develop for water utilities across the US, who are currently seeking guidance on analytical methods for pharmaceuticals in their water supplies.

  14. Development of EPA's (Environmental Protection Agency) BRC (below regulatory concern) criteria for the disposal of low-level radioactive waste

    SciTech Connect

    Gruhlke, J.M.; Galpin, F.L.; Holcomb, W.F. )

    1989-11-01

    The Environmental Protection Agency (EPA) program to develop proposed generally applicable environmental standards for land disposal of low-level radioactive waste (LLW) and certain naturally occurring and accelerator-produced radioactive wastes has been completed. The elements of the proposed standards for LLW under 40CFR193 of the Code of Federal Regulations include the following: 1. exposure limits for predisposal management and storage operations; 2. criteria for other regulatory agencies to follow in specifying wastes that are below regulatory concern (BRC); 3. postdisposal exposure limits; 4. groundwater protection requirements; and 5. qualitative implementation requirements. This paper focuses on the development of EPA's BRC criteria applicable to the disposal of LLW.

  15. Total arsenic in rice milk.

    PubMed

    Shannon, Ron; Rodriguez, Jose M

    2014-01-01

    Rice milk and its by-products were tested for total arsenic concentration. Total arsenic concentration was determined using graphite-furnace atomic absorption spectrometry. The arsenic concentrations ranged from 2.7 ± 0.3 to 17.9 ± 0.5 µg L(-1). Rice milk and its by-products are not clearly defined as food, water or milk substitute. The US Environmental Protection Agency (EPA), the European Union (EU) and the World Health Organization (WHO) have set a level of 10 µg L(-1) for total arsenic concentrations in drinking water. The EU and the US regulatory agencies do not provide any guidelines on total arsenic concentrations in foods. This study provides us with a starting point to address this issue in the State of Mississippi, USA.

  16. 77 FR 20383 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-04

    ... 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received no... Request; NESHAP for Inorganic Arsenic Emissions From Glass Manufacturing Plants AGENCY: Environmental... Emissions from Glass Manufacturing Plants (Renewal) ICR Numbers: EPA ICR Number 1081.10, OMB Control...

  17. 75 FR 52326 - Agency Information Collection Activities; Proposed Collection; Comment Request; EPA's Light-Duty...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... Information Collection Activities; Proposed Collection; Comment Request; EPA's Light-Duty In-Use Vehicle... owners of light-duty vehicles. Title: EPA's Light Duty In-Use Vehicle Testing Program (Renewal). ICR... has an ongoing program to evaluate the emission performance of in-use light-duty (passenger car...

  18. 77 FR 58127 - Agency Information Collection Activities; Proposed Collection; Comment Request; EPA ICR No. 2104...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-19

    ...://www.epa.gov/epahome/dockets.htm . FOR FURTHER INFORMATION CONTACT: Rachel Lentz, Office of Brownfields.... Title: Brownfields Program--Accomplishment Reporting (Renewal). ICR numbers: EPA ICR No. 2104.04, OMB... and Brownfields Revitalization Act (Pub. L. 107-118) (``the Brownfields Amendments'') was signed...

  19. National Human Exposure Assessment Survey: analysis of exposure pathways and routes for arsenic and lead in EPA Region 5.

    PubMed

    Clayton, C A; Pellizzari, E D; Quackenboss, J J

    2002-01-01

    The National Human Exposure Assessment Survey (NHEXAS) Phase I field study conducted in EPA Region 5 (Great Lakes Area) provides extensive exposure data on a representative sample of approximately 250 residents of the region. Associated environmental media and biomarker (blood, urine) concentration data were also obtained for the study participants to aid in understanding of the relationships of exposures to both contaminant pathways and doses. Besides fulfilling the primary NHEXAS objectives, the NHEXAS data provided an opportunity to explore secondary usages, such as examining pathway to route of exposure relationships. A generic type of structural equation model was used to define the anticipated relationships among the various data types for both arsenic (As) and lead (Pb). Since, by design, only a few participants provided data for all sample types, implementing this model required that some media concentrations (outdoor air and soil) be imputed for subjects with missing information by using measurements collected in the same geographic area and time period. The model, and associated pairwise correlations, generally revealed significant but weak associations among the concentrations, exposures, and doses; the strongest associations occurred for the various air measurements (indoor versus outdoor and personal). The generally weak associations were thought to be partly due to the absence of complete coverage of nonresidential environmental media and to nonsynchronization of relevant measurement times and integration periods of collection across the various sample types. In general, relationships between the NHEXAS questionnaire data and the various concentration, exposure, and body-burden measures were also weak. The model results and the modeling exercise suggest several ways for optimizing the design of future exposure assessment studies that are aimed at supporting structural modeling activities. PMID:11859431

  20. Capital and Operating Costs of Small Arsenic Removal Adsorptive Media Systems

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) conducted 50 full-scale demonstration projects on treatment systems removing arsenic from drinking water in 26 states throughout the U.S. The projects were conducted to evaluate the performance, reliability, and cost of arsenic remo...

  1. AN OVERVIEW OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY'S SMALL SYSTEMS RESEARCH AND DEVELOPMENT CENTER AT THE EPA TEST AND EVALUATION FACILITY IN CINCINNATI, OHIO

    EPA Science Inventory

    The U.S. Environmental Protection Agency (U.S. EPA) landmark Safe Drinking Water Act Amendments of 1996 promised to bring and provide safe drinking water to all Americans. Since that time many have not understood or appreciated EPA involvement in the research and development (...

  2. Arsenic

    MedlinePlus

    ... mainly found in its less toxic organic form. Industrial processes Arsenic is used industrially as an alloying ... are also required to reduce occupational exposure from industrial processes. Education and community engagement are key factors ...

  3. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA. U.S. EPA DEMONSTRATION PROJECT AT SPRINGFIELD, OH. PROJECT SUMMARY

    EPA Science Inventory

    This document is a eight page summary of the final report on arsenic demonstration project at the Chateau Estates Mobile Home Park in Springfield, OH. The objectives of the project are to evaluate the effectiveness of AdEdge Technologies’ AD-33 media in removing arsenic to meet t...

  4. Establishment of Groundwater Arsenic Potential Distribution and Discrimination in Taiwan

    NASA Astrophysics Data System (ADS)

    Tsai, Kuo Sheng; Chen, Yu Ying; Chung Liu, Chih; Lin, Chien Wen

    2016-04-01

    According to the last 10 years groundwater monitoring data in Taiwan, Arsenic concentration increase rapidly in some areas, similar to Bengal and India, the main source of Arsenic-polluted groundwater is geological sediments, through reducing reactions. There are many researches indicate that high concentration of Arsenic in groundwater poses the risk to water safety, for example, the farm lands irrigation water contains Arsenic cause the concentration of Arsenic increase in soil and crops. Based on the management of water usage instead of remediation in the situation of insufficient water. Taiwan EPA has been developed the procedures of Arsenic contamination potential area establishment and source discriminated process. Taiwan EPA use the procedures to determine the management of using groundwater, and the proposing usage of Arsenic groundwater accordance with different objects. Agencies could cooperate with the water quality standard or water needs, studying appropriate water purification methods and the groundwater depth, water consumption, thus achieve the goal of water safety and environmental protection, as a reference of policy to control total Arsenic concentration in groundwater. Keywords: Arsenic; Distribution; Discrimination; Pollution potential area of Arsenic; Origin evaluation of groundwater Arsenic

  5. 40 CFR 13.22 - Salary offset when EPA is the creditor agency.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... arrangements which are consistent with law and regulations. Where a hearing is held, the employee is entitled... under a Federal benefits program (such as health insurance) requiring periodic deductions from pay, if... may have under either these procedures or any other provision of law. (q) Refunds. EPA will...

  6. NATIONAL HUMAN EXPOSURE ASSESSMENT SURVEY (NHEXAS): ANALYSIS OF EXPOSURE PATHWAYS AND ROUTES FOR ARSENIC AND LEAD IN EPA REGION 5

    EPA Science Inventory

    The National Human Exposure Assessment Survey (NHEXAS) Phase I field study conducted in EPA Region 5 (Great Lakes Area) provides extensive exposure data on a representative sample of approximately 250 residents of the region. Associated environmental media and biomarker (blood...

  7. EPA (Environmental Protection Agency) SITE (Superfund Innovative Technology Evaluation) program seeks technology proposals

    SciTech Connect

    Not Available

    1989-12-01

    EPA will issue an RFP to initiate the SITE-005 solicitation for demonstration of technologies under the Superfund Innovative Technology Evaluation (SITE) Program. This portion of the SITE program offers a mechanism for conducting a joint technology demonstration between EPA and the private sector. The goal of the demonstration program is to provide an opportunity for developers to demonstrate the performance of their technologies on actual hazardous wastes at Superfund sites, and to provide accurate and reliable data on that performance. Technologies selected must be of commercial scale and provide solutions to problems encountered at Superfund Sites. Primary emphasis in the RFP is on technologies that address: treatment of mixed, low level radioactive wastes in soils and groundwater; treatment of soils and sludges contaminated with organics and/or inorganics, materials handling as a preliminary step to treatment or further processing, treatment trains designed to handle specific wastes, are in situ technologies, especially those processes providing alternatives to conventional groundwater pump and treat techniques.

  8. U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA), ENVIRONMENTAL TECHNOLOGY VERIFICATION (ETV) PROGAM: RESIDENTIAL NUTRIENT REDUCTION

    EPA Science Inventory

    The U.S. Environmental Protection Agency Environmental Technology Verification (ETV) program evaluates the performance of innovative air, water, pollution prevention and monitoring technologies that have the potential to improve human health and the environment. This technology ...

  9. 40 CFR 63.13 - Addresses of State air pollution control agencies and EPA Regional Offices.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 9 2011-07-01 2011-07-01 false Addresses of State air pollution... PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES General Provisions § 63.13 Addresses of State air pollution control...

  10. 40 CFR 63.13 - Addresses of State air pollution control agencies and EPA Regional Offices.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 10 2014-07-01 2014-07-01 false Addresses of State air pollution... PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES General Provisions § 63.13 Addresses of State air pollution control...

  11. 40 CFR 63.13 - Addresses of State air pollution control agencies and EPA Regional Offices.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 10 2013-07-01 2013-07-01 false Addresses of State air pollution... PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES General Provisions § 63.13 Addresses of State air pollution control...

  12. 40 CFR 63.13 - Addresses of State air pollution control agencies and EPA Regional Offices.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 9 2010-07-01 2010-07-01 false Addresses of State air pollution... PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES General Provisions § 63.13 Addresses of State air pollution control...

  13. 40 CFR 63.13 - Addresses of State air pollution control agencies and EPA Regional Offices.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 10 2012-07-01 2012-07-01 false Addresses of State air pollution... PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES General Provisions § 63.13 Addresses of State air pollution control...

  14. 40 CFR 13.22 - Salary offset when EPA is the creditor agency.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) Entitlement to notice, hearing, written response and decision. (1) Prior to initiating collection action... to collect a debt by salary offset under this section is entitled to receive a written notice as... to a written decision on the following issues: (i) The determination of the Agency concerning...

  15. Coeur d'Alene basin EPA (Environmental Protection Agency) water quality monitoring, 1972-1986

    SciTech Connect

    Hornig, C.E.; Terpening, D.A.; Bogue, M.W.

    1988-09-01

    Region 10, U.S. EPA, has conducted chemical and biological monitoring during low-flow conditions from 1972 to 1986 along the South Fork Coeur d'Alene River in northern Idaho, a stream with a long history of severe metals pollution from mining activities. During 1986, metals analysis of sediments and tissues from the lower Coeur d'Alene River and Coeur d'Alene Lake was also conducted. Due chiefly to effluent controls at the Bunker Hill Complex Superfund site, concentrations of zinc, cadmium, and lead were reduced since the 1970's. Although levels of zinc and cadmium remain well above national criteria for protection of cold water biota, recovery of aquatic life has been substantial, with the lower mainstream now supporting a successful sports fishery. Sediments in the lower Coeur d'Alene system remain heavily contaminated with toxic metals, although high levels in edible fish tissues were not found. Allowable permit limits (as of 1986) for metals (primarily cadmium) have the potential of increasing in-stream metals concentrations. Water quality-based permits are particularly important for aquatic life protection of the South Fork upstream of Mullan and the mainstream downstream of the S.F. confluence.

  16. ARSENIC IN WATER USED FOR DRINKING - AN ENVIRONMENTAL TECHNOLOGY VERIFICATION

    EPA Science Inventory

    In October 2001, the U.S. Environmental Protection Agency (EPA) announced a new federal standard for concentrations of arsenic found in drinking water. The new standard was to be 10 parts-per-million (ppm). This new standard will be required by the Safe Drinking Water Act in...

  17. The use and acceptance of Other Scientifically Relevant Information (OSRI) in the U.S. Environmental Protection Agency (EPA) Endocrine Disruptor Screening Program.

    PubMed

    Bishop, Patricia L; Willett, Catherine E

    2014-02-01

    The U.S. Environmental Protection Agency (EPA) Endocrine Disruptor Screening Program (EDSP) currently relies on an initial screening battery (Tier 1) consisting of five in vitro and six in vivo assays to evaluate a chemical's potential to interact with the endocrine system. Chemical companies may request test waivers based on Other Scientifically Relevant Information (OSRI) that is functionally equivalent to data gathered in the screening battery or that provides information on a potential endocrine effect. Respondents for 47 of the first 67 chemicals evaluated in the EDSP submitted OSRI in lieu of some or all Tier 1 tests, seeking 412 waivers, of which EPA granted only 93. For 20 of the 47 chemicals, EPA denied all OSRI and required the entire Tier 1 battery. Often, the OSRI accepted was either identical to data generated by the Tier 1 assay or indicated a positive result. Although identified as potential sources of OSRI in EPA guidance, Part 158 guideline studies for pesticide registration were seldom accepted by EPA. The 93 waivers reduced animal use by at least 3325 animals. We estimate 27,731 animals were used in the actual Tier 1 tests, with additional animals being used in preparation for testing. Even with EPA's shift toward applying 21st-century toxicology tools to screening of endocrine disruptors in the future, acceptance of OSRI will remain a primary means for avoiding duplicative testing and reducing use of animals in the EDSP. Therefore, it is essential that EPA develop a consistent and transparent basis for accepting OSRI.

  18. MDI Biological Laboratory Arsenic Summit: Approaches to Limiting Human Exposure to Arsenic.

    PubMed

    Stanton, Bruce A; Caldwell, Kathleen; Congdon, Clare Bates; Disney, Jane; Donahue, Maria; Ferguson, Elizabeth; Flemings, Elsie; Golden, Meredith; Guerinot, Mary Lou; Highman, Jay; James, Karen; Kim, Carol; Lantz, R Clark; Marvinney, Robert G; Mayer, Greg; Miller, David; Navas-Acien, Ana; Nordstrom, D Kirk; Postema, Sonia; Rardin, Laurie; Rosen, Barry; SenGupta, Arup; Shaw, Joseph; Stanton, Elizabeth; Susca, Paul

    2015-09-01

    This report is the outcome of the meeting "Environmental and Human Health Consequences of Arsenic" held at the MDI Biological Laboratory in Salisbury Cove, Maine, August 13-15, 2014. Human exposure to arsenic represents a significant health problem worldwide that requires immediate attention according to the World Health Organization (WHO). One billion people are exposed to arsenic in food, and more than 200 million people ingest arsenic via drinking water at concentrations greater than international standards. Although the US Environmental Protection Agency (EPA) has set a limit of 10 μg/L in public water supplies and the WHO has recommended an upper limit of 10 μg/L, recent studies indicate that these limits are not protective enough. In addition, there are currently few standards for arsenic in food. Those who participated in the Summit support citizens, scientists, policymakers, industry, and educators at the local, state, national, and international levels to (1) establish science-based evidence for setting standards at the local, state, national, and global levels for arsenic in water and food; (2) work with government agencies to set regulations for arsenic in water and food, to establish and strengthen non-regulatory programs, and to strengthen collaboration among government agencies, NGOs, academia, the private sector, industry, and others; (3) develop novel and cost-effective technologies for identification and reduction of exposure to arsenic in water; (4) develop novel and cost-effective approaches to reduce arsenic exposure in juice, rice, and other relevant foods; and (5) develop an Arsenic Education Plan to guide the development of science curricula as well as community outreach and education programs that serve to inform students and consumers about arsenic exposure and engage them in well water testing and development of remediation strategies.

  19. An examination of the Environmental Protection Agency risk assessment principles and practices: a brief commentary on section 4.1.3 of the EPA March 2004 Staff Paper.

    PubMed

    Mundt, K A

    2006-01-01

    The US Environmental Protection Agency (EPA) recently issued a Staff Paper that articulates current risk assessment practices. In section 4.1.3, EPA states, "... effects that appear to be adaptive, non-adverse, or beneficial may not be mentioned." This statement may be perceived as precluding risk assessments based on non-default risk models, including the hormetic--or biphasic--dose-response model. This commentary examines several potential interpretations of this statement and the anticipated impact of ignoring hormesis, if present, in light of necessary conservatism for protecting human and environmental health, and the potential for employing alternative risk assessment approaches.

  20. An examination of the Environmental Protection Agency risk assessment principles and practices: a brief commentary on section 4.1.3 of the EPA March 2004 Staff Paper.

    PubMed

    Mundt, K A

    2006-01-01

    The US Environmental Protection Agency (EPA) recently issued a Staff Paper that articulates current risk assessment practices. In section 4.1.3, EPA states, "... effects that appear to be adaptive, non-adverse, or beneficial may not be mentioned." This statement may be perceived as precluding risk assessments based on non-default risk models, including the hormetic--or biphasic--dose-response model. This commentary examines several potential interpretations of this statement and the anticipated impact of ignoring hormesis, if present, in light of necessary conservatism for protecting human and environmental health, and the potential for employing alternative risk assessment approaches. PMID:16459710

  1. MDI Biological Laboratory Arsenic Summit: Approaches to Limiting Human Exposure to Arsenic

    PubMed Central

    Stanton, Bruce A.

    2015-01-01

    This report is the outcome of the meeting: “Environmental and Human Health Consequences of Arsenic”, held at the MDI Biological Laboratory in Salisbury Cove, Maine, August 13–15, 2014. Human exposure to arsenic represents a significant health problem worldwide that requires immediate attention according to the World Health Organization (WHO). One billion people are exposed to arsenic in food and more than 200 million people ingest arsenic via drinking water at concentrations greater than international standards. Although the U.S. Environmental Protection Agency (EPA) has set a limit of 10 micrograms per liter (10 μg/L) in public water supplies and the WHO has recommended an upper limit of 10 μg/L, recent studies indicate that these limits are not protective enough. In addition, there are currently few standards for arsenic in food. Those who participated in the Summit support citizens, scientists, policymakers, industry and educators at the local, state, national and international levels to: (1) Establish science-based evidence for setting standards at the local, state, national, and global levels for arsenic in water and food; (2) Work with government agencies to set regulations for arsenic in water and food, to establish and strengthen non-regulatory programs, and to strengthen collaboration among government agencies, NGOs, academia, the private sector, industry and others; (3) Develop novel and cost-effective technologies for identification and reduction of exposure to arsenic in water; (4) Develop novel and cost-effective approaches to reduce arsenic exposure in juice, rice, and other relevant foods, and (5) Develop an Arsenic Education Plan to guide the development of science curricula as well as community outreach and education programs that serve to inform students and consumers about arsenic exposure and engage them in well water testing and development of remediation strategies. PMID:26231509

  2. 7 CFR 650.21 - Working relations with the U.S. Environmental Protection Agency (EPA) and related State...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... EIS's. (v) Advise EPA regarding soils, plant materials, and soil and water conservation techniques... areas of mutual concern. These common areas include air quality, water quality, pesticides, waste.... The Deputy Administrator for Water Resources is responsible for contacts with EPA in relation...

  3. 7 CFR 650.21 - Working relations with the U.S. Environmental Protection Agency (EPA) and related State...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... areas of mutual concern. These common areas include air quality, water quality, pesticides, waste...) and environmental considerations in the conservation and development of natural resources. (b) Policy... significance and mutual advantage. (ii) Assist EPA as requested in developing EPA policy, guidelines,...

  4. Beyond regulations: industry voluntary ban in arsenic use.

    PubMed

    Hsueh, Lily

    2013-12-15

    Firms play a key role in pollution abatement and control by engaging in beyond-compliance actions without the force of law in voluntary programs. This study examines the effectiveness of a bilateral voluntary agreement, one type of voluntary programs, negotiated between the U.S. Environmental Protection Agency (EPA) and the pressure-treated wood industry to phase-out the use of chromated copper arsenate (CCA), a poisonous arsenic compound. Arsenic is ranked number one on the EPA's priority list of hazardous substances. Unlike a majority of earlier studies on voluntary programs, dynamic panel estimation and structural break analysis show that while a technological innovation in semiconductors is associated with arsenic use increases, the CCA voluntary agreement is associated with a reduction in arsenic use to levels not seen since the 1920s. A voluntary ban in arsenic acid by pesticide manufacturers in the agriculture sector has also contributed to arsenic reductions. Furthermore, the results suggest that environmental activism has played a role in curbing arsenic use. Increasing stakeholder pressures, as measured by membership in the Sierra Club, improves voluntary agreement effectiveness.

  5. EPA`s cooperative research opportunities

    SciTech Connect

    Gatchett, A.M.; Fradkin, L.; James, S.

    1994-12-31

    The US Environmental Protection Agency (EPA) and the private sector find an increasing need for new cost-effective environmental technologies to treat, control, and prevent pollution. Many cooperative research programs to address this concern are available through the EPA. The Office of Research and Development (ORD) currently operates two of the most visible innovative technology development programs: (1) Superfund Innovative Technology Evaluation (SITE) Program; (2) Federal Technology Transfer Act (FTTA) Program. These programs work very closely with the other EPA program offices. A brief overview of these activities and the new Environmental Technology Initiative within EPA are presented in this paper.

  6. TYPES OF ARSENIC AND TREATMENT OPTIONS

    EPA Science Inventory

    Presentation will discuss the state-of-the-art technology for removal of arsenic from drinking water. Presentation includes results of several EPA field studies on removal of arsenic from existing arsenic removal plants and key results from several EPA sponsored research studies...

  7. UMTRA Project remedial action planning and disposal cell design to comply with the proposed EPA (Environmental Protection Agency) standards (40 CFR Part 192)

    SciTech Connect

    Not Available

    1989-01-01

    The Uranium Mill Tailings Remedial Action (UMTRA) Project involves stabilizing 24 inactive uranium mill tailings piles in 10 states. Remedial work must meet standards established by the US Environmental Protection Agency (EPA). Remedial action must be designed and constructed to prevent dispersion of the tailings and other contaminated materials, and must prevent the inadvertent use of the tailings by man. This report is prepared primarily for distribution to parties involved in the UMTRA Project, including the US Nuclear Regulatory Commission (NRC), and states and tribes. It is intended to record the work done by the DOE since publication of the proposed EPA groundwater protection standards, and to show how the DOE has attempted to respond and react in a positive way to the new requirements that result from the proposed standards. This report discusses the groundwater compliance strategies now being defined and implemented by the DOE, and details the changes in disposal cell designs that result from studies to evaluate ways to facilitate compliance with the proposed EPA groundwater protection standards. This report also serves to record the technical advances, planning, and progress made on the UMTRA Project since the appearance of the proposed EPA groundwater protection standards. The report serves to establish, document, and disseminate technical approaches and engineering and groundwater information to people who may be interested or involved in similar or related projects. 24 refs., 27 figs., 8 tabs.

  8. EXTRACTION AND SPECIATION OF ARSENIC CONTAINING DRINKING WATER TREATMENT SOLIDS BY IC-ICP-MS

    EPA Science Inventory

    In 2001, the U.S. Environmental Protection Agency (EPA) passed the Arsenic Rule, which established a maximum contaminant level of 105g/L. Compliance with this regulation has caused a number of drinking water utilities to investigate potential treatment options. The adsorption o...

  9. The Role of Microbial Processes in the Oxidation and Removal of Arsenic from Drinking Water

    EPA Science Inventory

    The United States Environmental Protection Agency (EPA) recently reduced the drinking water standard for arsenic (As) in water from 0.05 to 0.010 milligrams/Liter (L) (10 micrograms/L). This reduction was prompted by new health effects research, which concluded th...

  10. IRIS Toxicological Review of Ingested Inorganic Arsenic (2005 Sab External Review Draft)

    EPA Science Inventory

    EPA's Office of Research and Development (ORD), Office of Pesticide Programs (OPP), and Office of Water (OW) requested the SAB to provide advice to the Agency on several issues about the mode of carcinogenic action of various arsenic species and the implications of these issues f...

  11. The Costs of Small Drinking Water Systems Removing Arsenic from Groundwater

    EPA Science Inventory

    Between 2003 and 2011, EPA conducted an Arsenic Demonstration Program whereby the Agency purchased, installed and evaluated the performance and cost of 50 small water treatment systems scattered across the USA. A major goal of the program was to collect high-quality cost data (c...

  12. ETV COLLABORATIVE EVALUATIONS OF MARKET-READY TECHNOLOGIES FOR ARSENIC REMOVAL IN DRINKING WATER

    EPA Science Inventory

    How well do some commercially marketed package treatment systems perform to reduce arsenic from drinking water supplies? The Environmental Technology Verification (ETV) Drinking Water Systems (DWS) Center is a partnership between the U.S. Environmental Protection Agency (U.S. EPA...

  13. Potential for Siting New Water Wells and Restoring Existing Wells in Arsenic-Impacted Aquifers

    EPA Science Inventory

    Studies have indicated that arsenic concentrations greater than the new U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) concentration of 10 micrograms per liter (ug/L) occur in numerous aquifers around the United States. One such aquifer is the Central ...

  14. Geographical variation in total and inorganic arsenic content of polished (white) rice.

    PubMed

    Meharg, Andrew A; Williams, Paul N; Adomako, Eureka; Lawgali, Youssef Y; Deacon, Claire; Villada, Antia; Cambell, Robert C J; Sun, Guoxin; Zhu, Yong-Guan; Feldmann, Joerg; Raab, Andrea; Zhao, Fang-Jie; Islam, Rafiqul; Hossain, Shahid; Yanai, Junta

    2009-03-01

    An extensive data set of total arsenic analysis for 901 polished (white) grain samples, originating from 10 countries from 4 continents, was compiled. The samples represented the baseline (i.e., notspecifically collected from arsenic contaminated areas), and all were for market sale in major conurbations. Median total arsenic contents of rice varied 7-fold, with Egypt (0.04 mg/kg) and India (0.07 mg/kg) having the lowest arsenic content while the U.S. (0.25 mg/kg) and France (0.28 mg/kg) had the highest content. Global distribution of total arsenic in rice was modeled by weighting each country's arsenic distribution by that country's contribution to global production. A subset of 63 samples from Bangladesh, China, India, Italy, and the U.S. was analyzed for arsenic species. The relationship between inorganic arsenic contentversus total arsenic contentsignificantly differed among countries, with Bangladesh and India having the steepest slope in linear regression, and the U.S. having the shallowest slope. Using country-specific rice consumption data, daily intake of inorganic arsenic was estimated and the associated internal cancer risk was calculated using the U.S. Environmental Protection Agency (EPA) cancer slope. Median excess internal cancer risks posed by inorganic arsenic ranged 30-fold for the 5 countries examined, being 0.7 per 10,000 for Italians to 22 per 10,000 for Bangladeshis, when a 60 kg person was considered.

  15. THE IDEA IS TO USEMODIS IN CONJUNCTION WITH THE CURRENT LIMITED LANDSAT CAPABILITY, COMMERCIAL SATELLITES, ANDUNMANNED AERIAL VEHICLES (UAV), IN A MULTI-STAGE APPROACH TO MEET EPA INFORMATION NEEDS.REMOTE SENSING OVERVIEW: EPA CAPABILITIES, PRIORITY AGENCY APPLICATIONS, SENSOR/AIRCRAFT CAPABILITIES, COST CONSIDERATIONS, SPECTRAL AND SPATIAL RESOLUTIONS, AND TEMPORAL CONSIDERATIONS

    EPA Science Inventory

    EPA remote sensing capabilities include applied research for priority applications and technology support for operational assistance to clients across the Agency. The idea is to use MODIS in conjunction with the current limited Landsat capability, commercial satellites, and Unma...

  16. 75 FR 61481 - Agency Information Collection Activities; Submission of EPA ICR No. 2078.01 to OMB for Review and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ... means EPA will not know your identity or contact information unless you provide it in the body of your... recommends that you include your name and other contact information in the body of your comment and with any..., OMB Control No. 2060-0528. ICR Status: This ICR is currently scheduled to expire on March 31, 2011....

  17. Arsenic species in drinking water wells in the USA with high arsenic concentrations.

    PubMed

    Sorg, Thomas J; Chen, Abraham S C; Wang, Lili

    2014-01-01

    Arsenic exists in ground water as oxyanions having two oxidation states, As(III) and As(V), and its concentrations vary widely and regionally across the United States (USA). Because of the difference in toxicity and removability of As(III) and As(V), arsenic speciation is important in the selection and design of an arsenic treatment systems. Identifying the arsenic species is also helpful in explaining and understanding the behavior and characteristics of arsenic in the environment. Although laboratory methods exist for speciating arsenic in water samples, the lack of a universal preservation method has led to the predominant use of field separation methods that are somewhat complex and costly. Thus, very few studies have incorporated arsenic speciation. A U.S. Environmental protection Agency (EPA) arsenic treatment research program provided a unique opportunity to speciate the naturally occurring arsenic in 65 well waters scattered across the USA with many of them being speciated monthly for up to three years. Speciation test data showed that 31 wells had predominantly As(V), 29 had predominantly As(III) and five had a mixture of both. A general pattern was found where As(III) was the dominant species in midwest ground waters where anoxic conditions and elevated iron concentrations prevailed and the well waters in the east, west and farwest had either As(III) or As(V) as the dominant species. The monthly (12-36) speciation tests results at many of these sites also found no major changes in arsenic species over time.

  18. EPA (Environmental Protection Agency) evaluation of the gyroscopic wheel cover device under Section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Syria, S.L.

    1983-06-01

    This report announces the conclusions of the Environmental Protection Agency (EPA) evaluation of the Gyroscopic Wheel Cover under the provisions of Section 511 of the Motor Vehicle Information and Cost Savings Act. The evaluation of the Gyroscopic Wheel Cover device was conducted upon the application of Simmer Wheels, Incorporated. The device is a mechanical assembly which replaces each of the standard wheel covers on a vehicle. The device is claimed to improve fuel economy, handling and braking characteristics, and the life of the brakes and tires.

  19. Ohio EPA Teachers Kit.

    ERIC Educational Resources Information Center

    Ohio State Environmental Protection Agency, Columbus.

    In an effort to provide teachers in Ohio with assistance in environmental education, the Ohio Environmental Protection Agency (EPA) has produced this teachers kit. It is designed to describe what the Ohio EPA is doing to protect Ohio's air, land, and water. The background information provides an historical account of some of the events that have…

  20. INSIDE EPA RESEARCH

    EPA Science Inventory

    The article discusses air pollution research at the U.S. EPA, and particularly AEERL's role in that research which, in some areas, predates the Agency's. EPA's engineering research programs are shifting from an initial focus on sulfur dioxide and nitrogen oxide pollution control ...

  1. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Richmond Elementary School in Susanville, CA Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at Richmond Elementary School in Susanville, CA. The objectives of the project were to evaluate: (1) the effectiveness of an Aquatic Treatme...

  2. Arsenic Removal from Drinking Water by Absorptive Media-U.S. EPA Demonstration Project at Desert Sands MDWCA, NM Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at the Desert Sands Mutual Domestic Water Consumers Association (MDWCA) facility in Anthony, NM. The objectives of the project were to evalu...

  3. Arsenic Removal from Drinking Water by Adsorptive Media, U.S. EPA Demonstration Project at LEADS Head Start Building in Buckeye Lake, OH - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at Licking Economic Action Development Study (LEADS) Head Start School in Buckeye Lake, Ohio. The objectives of the project were to evaluate...

  4. Arsenic Removal from Drinking Water by Adsorptive Media EPA Demonstration Project at Golden Hills Community Services District in Tehachapi, CA Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at Golden Hills Community Services District (GHCSD) located in Tehachapi, CA. The objectives of the project were to evaluate (1) the effecti...

  5. Arsenic Removal from Drinking Water by Adsorptive Media USEPA Demonstration Project at Bow, NH Final performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the U.S. Environmental Protection Agency (EPA) arsenic removal treatment technology demonstration project at the White Rock Water Company (WRWC) public water system, a small residential drinking w...

  6. Comparison of EPA (Environmental Protection Agency) test house data with predictions of an indoor-air-quality model

    SciTech Connect

    Sparks, L.E.; Jackson, M.D.; Tichenor, B.A.

    1988-07-01

    An easy-to-use indoor-air-quality (IAQ) model is described. It is multi-compartmented and based on a well-mixed mixing model. Sources and sinks are allowed in each compartment. A menu-driven fill-in-the-form user interface controls program flow and is used to obtain data from the user. On-screen graphical output is provided. The model estimates the effects of heating, ventilation, and air conditioning (HVAC), air cleaning, room-to-room air movement, and natural ventilation on pollutant concentrations. Experiments conducted in the EPA test house using moth crystal cakes for model verification are described. The agreement between small chamber emission factors, model predictions, and test house data is very good. Predicted weight loss of the moth crystal cakes was within 5% of the measured weight loss. Predicted room concentrations of p-dichlorobenzene are within 20% of the measured values. Future directions for model development and experimental studies are discussed.

  7. EPA (Environmental Protection Agency) method study 25, method 602, purgeable aromatics. Report for Sep 79-Dec 82

    SciTech Connect

    Warner, B.J.; Finke, J.M.; Gable, R.C.; Strobel, J.E.; Snyder, A.D.

    1984-05-01

    The experimental design and the results of an interlaboratory study for an analytical method to detect purgeable aromatics in water are described herein. The method, EPA Method 602, Purgeable Aromatics, employs a purge-and-trap chromatographic technique for determination of seven aromatic hydrocarbon analytes in water matrices. The three Youden pairs of spiking solutions used in this study contained benzene, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, ethylbenzene and toluene. The six water types used in the study were distilled water, drinking water, surface water, and three wastewater samples from industries employing or producing aromatic hydrocarbons. Twenty laboratories participated in the Method 602 validation study. The participating laboratories supplied their individual distilled, drinking, and surface water samples. Monsanto Research Corporation (MRC) supplied the three industrial wastewater samples. The statistical analyses and conclusions reached in this report are based on the analytical data obtained by the 20 participating laboratories.

  8. Aggregating data for computational toxicology applications: The U.S. Environmental Protection Agency (EPA) Aggregated Computational Toxicology Resource (ACToR) System.

    PubMed

    Judson, Richard S; Martin, Matthew T; Egeghy, Peter; Gangwal, Sumit; Reif, David M; Kothiya, Parth; Wolf, Maritja; Cathey, Tommy; Transue, Thomas; Smith, Doris; Vail, James; Frame, Alicia; Mosher, Shad; Cohen Hubal, Elaine A; Richard, Ann M

    2012-01-01

    Computational toxicology combines data from high-throughput test methods, chemical structure analyses and other biological domains (e.g., genes, proteins, cells, tissues) with the goals of predicting and understanding the underlying mechanistic causes of chemical toxicity and for predicting toxicity of new chemicals and products. A key feature of such approaches is their reliance on knowledge extracted from large collections of data and data sets in computable formats. The U.S. Environmental Protection Agency (EPA) has developed a large data resource called ACToR (Aggregated Computational Toxicology Resource) to support these data-intensive efforts. ACToR comprises four main repositories: core ACToR (chemical identifiers and structures, and summary data on hazard, exposure, use, and other domains), ToxRefDB (Toxicity Reference Database, a compilation of detailed in vivo toxicity data from guideline studies), ExpoCastDB (detailed human exposure data from observational studies of selected chemicals), and ToxCastDB (data from high-throughput screening programs, including links to underlying biological information related to genes and pathways). The EPA DSSTox (Distributed Structure-Searchable Toxicity) program provides expert-reviewed chemical structures and associated information for these and other high-interest public inventories. Overall, the ACToR system contains information on about 400,000 chemicals from 1100 different sources. The entire system is built using open source tools and is freely available to download. This review describes the organization of the data repository and provides selected examples of use cases.

  9. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Woodstock Middle School in Woodstock, CT - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the arsenic removal treatment technology demonstration project at the Woodstock Middle School in Woodstock, CT. The objectives of the project were to evaluate the effectiveness of Adsorbsia™ GTO™ me...

  10. Arsenic Removal from Drinking Water by Coagulation/Filtration U.S. EPA Demonstration Project at City of Three Forks, MT, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at the City of Three Forks, MT facility. The objectives of the project were to evaluate: 1) the effectiveness of Kinetico’s FM-248-A...

  11. Arsenic Removal from Drinking Water by Coagulation/Filtration, U.S. EPA Demonstration Project at the City of Okanogan, WA - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at the City of Okanogan, WA facility. The objectives of the project were to evaluate: (1) the effectiveness of Filtronics’ FH-13 Ele...

  12. Arsenic Removal from Drinking Water by Coagulation/Filtration - U.S. EPA Demonstration Project at Village of Waynesville, IL - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal drinking water treatment technology demonstration project at the Village of Waynesville, IL. The main objective of the project was to evaluate the effectiveness of the Peerless coagu...

  13. Arsenic Removal from Drinking Water by Coagulation/Filtration U.S. EPA Demonstration Project at Village of Pentwater, MI. Final performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at the Village of Pentwater, MI facility. The objectives of the project were to evaluate: (1) the effectiveness of Kinetico’s FM-260...

  14. Arsenic Removal from Drinking Water by Coagulation/Filtration - U.S. EPA Demonstration Project at Town of Arnaudville, LA - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at the United Water Systems’ facility in Arnaudville, LA. The objectives of the project were to evaluate: (1) the effectiveness of K...

  15. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Brown City, MI Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project in Brown City, MI. The objectives of the project were to evaluate (1) the effectiveness of a Severn Trent Services (STS) adsorptive media s...

  16. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Geneseo Hills Subdivision, in Geneseo, IL Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at the Geneseo Hills Subdivision in Geneseo, IL. The main objective of the project was to evaluate the effectiveness of AdEdge Technologies...

  17. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Webb Consolidated Independent School District in Bruni, TX - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at the Webb Consolidated Independent School District (Webb CISD) in Bruni, TX. The main objective of the project was to evaluate the effect...

  18. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA. EPA DEMONSTRATION PROJECT AT QUEEN ANNES COUNTY, MARYLAND SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the first six months of the arsenic removal treatment technology demonstration project at the community of Prospect Bay at Grasonville in Queen Anne’s County, MD. The objectives of the project were to ev...

  19. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Goffstown, NH, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at the Orchard Highlands Subdivision site in Goffstown, NH. The main objective of the project was to evaluate the effectiveness of AdEdge T...

  20. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA U.S. EPA DEMONSTRATION PROJECT AT CHATEAU ESTATES MOBILE HOME PARK IN SPRINGFIELD, OH. FINAL PERFORMANCE EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the first six months of the arsenic removal treatment technology demonstration project at the Chateau Estates Mobile Home Park at Springfield, OH. The objectives of the project are to evaluate the ef...

  1. Arsenic Removal from Drinking Water by Ion Exchange - U.S. EPA Demonstration Project at Fruitland, ID - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the performance evaluation of a Kinetico ion exchange (IX) system to remove arsenic (As) and nitrate from source water at the City of Fruitland in Idaho. The 250-gal/min (...

  2. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA U.S. EPA DEMONSTRATION PROJECT AT BRUNI, TX, SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the first six months of the arsenic removal treatment technology demonstration project at the Webb Consolidated Independent School District (Webb CISD) site at Bruni, TX. The main objective of the projec...

  3. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Wellman, TX, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project in the City of Wellman, TX. The main objective of the project was to evaluate the effectiveness of AdEdge Technologies’ AD-33 media in remo...

  4. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA U.S. EPA DEMONSTRATION PROJECT AT CHATEAU ESTATES MOBILE HOME PARK IN SPRINGFIELD, OH. SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the first six months of the arsenic removal treatment technology demonstration project at the Chateau Estates Mobile Home Park at Springfield, OH. The objectives of the project are to evaluate the ef...

  5. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Wellman, TX, Six-Month Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the first six months of the arsenic removal treatment technology demonstration project in the City of Wellman, TX. The main objective of the project was to evaluate the effectiveness of AdEdge Technolog...

  6. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Covered Wells in Tohono O’odham Nation, AZ - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at Covered Wells in Tohono O’odham Nation, AZ. The main objective of the project was to evaluate the effectiveness of AdEdge Technologies’ ...

  7. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Queen Anne’s County, Maryland Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at the community of Prospect Bay at Grasonville in Queen Anne’s County, MD. The main objective of the project was to evaluate the effective...

  8. ARSENIC REMOVAL FROM DRINKING WATER BY ION EXCHANGE. U.S. EPA DEMONSTRATION PROJECT AT FRUITLAND, ID SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the performance evaluation of a Kinetico ion exchange (IX) system to remove arsenic (As) and nitrate from source water at the City of Fruitland in Idaho. The 250-gal/min (g...

  9. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA. U.S. EPA DEMONSTRATION PROJECT AT SOUTH TRUCKEE MEADOWS GENERAL IMPROVEMENT DISTRICT (STMIG), NV. INTERIM EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first 32 weeks of operation of an arsenic and antimony removal technology currently being demonstrated at the South Truckee Meadows General Improvement District (STMGID) in Washoe County, NV. ...

  10. ARSENIC REMOVAL FROM DRINKING WATER BY POINT OF USE REVERSE OSMOSIS. EPA DEMONSTRATION PROJECT AT SUNSET RANCH DEVELOPMENT IN HOMEDALE, ID. SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the point of use arsenic removal treatment technology demonstration project at the Sunset Ranch Development in Homedale, ID. The objectives of the project are to evaluate t...

  11. Arsenic Removal from Drinking Water by Coagulation/Filtration U.S. EPA Demonstration Project at Town of Felton, DE, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at the Town of Felton, DE. The objectives of the project were to evaluate: (1) the effectiveness of Kinetico’s FM-348-AS coagulation...

  12. Arsenic Removal from Drinking Water by Coagulation/Filtration - U.S. EPA Demonstration Project at Conneaut Lake Park in Conneaut Lake, PA - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at Conneaut Lake Park (the Park) in Conneaut Lake, PA. The main objective of the project was to evaluate the effectiveness of AdEdge Techno...

  13. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA. U.S. EPA DEMONSTRATION PROJECT AT BOW, NH , SIX MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months of the arsenic removal treatment technology demonstration project at the White Rock Water Company (WRWC) public water system, a small residential drinking water facility in Bo...

  14. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Seely-Brown Village in Pomfret, CT - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the arsenic removal treatment technology demonstration project at Seely-Brown Village in Pomfret, CT. The objectives of the project were to evaluate the effectiveness of ArsenXnp adsorption media in...

  15. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Dummerston, VT Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at Charette Mobile Home Park (CMHP) in Dummerston, Vermont. The objectives of the project were to evaluate: (1) the effectiveness of an Aqua...

  16. Arsenic Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at Hot Springs Mobile Home Park in Willard, Utah - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents activities performed for and results obtained from the arsenic removal treatment technology demonstration project at the Hot Springs Mobile Home Park (HSMHP) in Willard, UT. The objectives of the project were to evaluate the effectiveness of Adsorbsia™ GTO™...

  17. ARSENIC REMOVAL FROM DRINKING WATER BY ADSORPTIVE MEDIA U.S. EPA DEMONSTRATION PROJECT AT DUMMERSTON, VT SIX-MONTH EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first six months (from June 22, 2005 through December 22, 2005) of the arsenic removal treatment technology demonstration project at Charette Mobile Home Park (CMHP) in Dummerston, Vermont. T...

  18. Arsenic Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Upper Bodfish in Lake Isabella, CA Interim Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the first 10 months of system operation of an arsenic (As) and uranium (U) removal technology being demonstrated at Upper Bodfish in Lake Isabella, CA. The objectives of the project are to evalua...

  19. Arsenic and Uranium Removal from Drinking Water by Adsorptive Media U.S. EPA Demonstration Project at Upper Bodfish in Lake Isabella, CA -Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the performance evaluation of an arsenic (As) and uranium (U) removal technology demonstrated at Upper Bodfish in Lake Isabella, CA. The objectives of the project are to evaluate: (1) the effecti...

  20. Arsenic Removal from Drinking Water by Iron Removal - U.S. EPA Demonstration Project at Northeastern Elementary School in Fountain City, IN - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed and the results obtained from the arsenic removal treatment technology demonstration project at Northeastern Elementary School in Fountain City, IN. The main objective of the project was to evaluate the effectiveness of US Water Sys...

  1. ARSENIC REMOVAL FROM DRINKING WATER BY IRON REMOVAL. U.S. EPA DEMONSTRATION PROJECT AT CLIMAX, MN. FINAL PERFORMANCE EVALUATION REPORT.

    EPA Science Inventory

    This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project following one year of operation at the Climax, Minnesota, site. The objectives of the project were to evaluate: (1) the effectiveness of Kin...

  2. US EPA (Environmental Protection Agency) perspective on AOC (assimilable organic carbon) research as related to coliform colonization and compliance problems

    SciTech Connect

    Reasoner, D.J.; Rice, E.W.

    1989-01-01

    The biological stability of treated drinking water has become a major concern for water utilities. The U.S. E.P.A. is concerned from the perspective of coliform MCL compliance and remediation of coliform biofilm problems. The levels of readily assimilable nutrients present in treated water are affected by water treatment processes, but of greatest concern are those processes, such as ozonation, that cause increases in the levels of assimilable organic carbon (AOC) and therefore contribute to biological instability of the water. Thus, the combined use of ozonation (pre-oxidant) and a lower disinfectant residual as an approach to reducing disinfectant byproducts may result in increased bacterial growth, including coliforms, in the distribution system. Information is needed on: the AOC flux level that stimulate coliform growth in biofilm: the specific nutrients and concentrations that can stimulate growth of both coliforms and HPC; treatment strategies to reduce AOC levels and strategies to effectively control biofilm formation where AOC levels cannot be reduced.

  3. Case studies--arsenic.

    PubMed

    Chou, C H Selene J; De Rosa, Christopher T

    2003-08-01

    Arsenic is found naturally in the environment. People may be exposed to arsenic by eating food, drinking water, breathing air, or by skin contact with soil or water that contains arsenic. In the U.S., the diet is a predominant source of exposure for the general population with smaller amounts coming from drinking water and air. Children may also be exposed to arsenic because of hand to mouth contact or eating dirt. In addition to the normal levels of arsenic in air, water, soil, and food, people could by exposed to higher levels in several ways such as in areas containing unusually high natural levels of arsenic in rocks which can lead to unusually high levels of arsenic in soil or water. People living in an area like this could take in elevated amounts of arsenic in drinking water. Workers in an occupation that involves arsenic production or use (for example, copper or lead smelting, wood treatment, pesticide application) could be exposed to elevated levels of arsenic at work. People who saw or sand arsenic-treated wood could inhale/ingest some of the sawdust which contains high levels of arsenic. Similarly, when pressure-treated wood is burned, high levels of arsenic could be released in the smoke. In agricultural areas where arsenic pesticides were used on crops the soil could contain high levels of arsenic. Some hazardous waste sites contain large quantities of arsenic. Arsenic ranks #1 on the ATSDR/EPA priority list of hazardous substances. Arsenic has been found in at least 1,014 current or former NPL sites. At the hazardous waster sites evaluated by ATSDR, exposure to arsenic in soil predominated over exposure to water, and no exposure to air had been recorded. However, there is no information on morbidity or mortality from exposure to arsenic in soil at hazardous waste sites. Exposure assessment, community and tribal involvement, and evaluation and surveillance of health effects are among the ATSDR future Superfund research program priority focus areas

  4. EPA Environmental Chemistry Laboratory

    NASA Technical Reports Server (NTRS)

    1993-01-01

    The Environmental Protection Agency's (EPA) Chemistry Laboratory (ECL) is a national program laboratory specializing in residue chemistry analysis under the jurisdiction of the EPA's Office of Pesticide Programs in Washington, D.C. At Stennis Space Center, the laboratory's work supports many federal anti-pollution laws. The laboratory analyzes environmental and human samples to determine the presence and amount of agricultural chemicals and related substances. Pictured, ECL chemists analyze environmental and human samples for the presence of pesticides and other pollutants.

  5. Adult hippocampal neurogenesis and mRNA expression are altered by perinatal arsenic exposure in mice and restored by brief exposure to enrichment.

    PubMed

    Tyler, Christina R; Allan, Andrea M

    2013-01-01

    Arsenic is a common and pervasive environmental contaminant found in drinking water in varying concentrations depending on region. Exposure to arsenic induces behavioral and cognitive deficits in both human populations and in rodent models. The Environmental Protection Agency (EPA) standard for the allotment of arsenic in drinking water is in the parts-per-billion range, yet our lab has shown that 50 ppb arsenic exposure during development can have far-reaching consequences into adulthood, including deficits in learning and memory, which have been linked to altered adult neurogenesis. Given that the morphological impact of developmental arsenic exposure on the hippocampus is unknown, we sought to evaluate proliferation and differentiation of adult neural progenitor cells in the dentate gyrus after 50 ppb arsenic exposure throughout the perinatal period of development in mice (equivalent to all three trimesters in humans) using a BrdU pulse-chase assay. Proliferation of the neural progenitor population was decreased by 13% in arsenic-exposed mice, but was not significant. However, the number of differentiated cells was significantly decreased by 41% in arsenic-exposed mice compared to controls. Brief, daily exposure to environmental enrichment significantly increased proliferation and differentiation in both control and arsenic-exposed animals. Expression levels of 31% of neurogenesis-related genes including those involved in Alzheimer's disease, apoptosis, axonogenesis, growth, Notch signaling, and transcription factors were altered after arsenic exposure and restored after enrichment. Using a concentration previously considered safe by the EPA, perinatal arsenic exposure altered hippocampal morphology and gene expression, but did not inhibit the cellular neurogenic response to enrichment. It is possible that behavioral deficits observed during adulthood in animals exposed to arsenic during development derive from the lack of differentiated neural progenitor cells

  6. Adult Hippocampal Neurogenesis and mRNA Expression are Altered by Perinatal Arsenic Exposure in Mice and Restored by Brief Exposure to Enrichment

    PubMed Central

    Tyler, Christina R.; Allan, Andrea M.

    2013-01-01

    Arsenic is a common and pervasive environmental contaminant found in drinking water in varying concentrations depending on region. Exposure to arsenic induces behavioral and cognitive deficits in both human populations and in rodent models. The Environmental Protection Agency (EPA) standard for the allotment of arsenic in drinking water is in the parts-per-billion range, yet our lab has shown that 50 ppb arsenic exposure during development can have far-reaching consequences into adulthood, including deficits in learning and memory, which have been linked to altered adult neurogenesis. Given that the morphological impact of developmental arsenic exposure on the hippocampus is unknown, we sought to evaluate proliferation and differentiation of adult neural progenitor cells in the dentate gyrus after 50 ppb arsenic exposure throughout the perinatal period of development in mice (equivalent to all three trimesters in humans) using a BrdU pulse-chase assay. Proliferation of the neural progenitor population was decreased by 13% in arsenic-exposed mice, but was not significant. However, the number of differentiated cells was significantly decreased by 41% in arsenic-exposed mice compared to controls. Brief, daily exposure to environmental enrichment significantly increased proliferation and differentiation in both control and arsenic-exposed animals. Expression levels of 31% of neurogenesis-related genes including those involved in Alzheimer’s disease, apoptosis, axonogenesis, growth, Notch signaling, and transcription factors were altered after arsenic exposure and restored after enrichment. Using a concentration previously considered safe by the EPA, perinatal arsenic exposure altered hippocampal morphology and gene expression, but did not inhibit the cellular neurogenic response to enrichment. It is possible that behavioral deficits observed during adulthood in animals exposed to arsenic during development derive from the lack of differentiated neural progenitor

  7. EPA`s approach to assessment of radon risk

    SciTech Connect

    Schmidt, A.; Puskin, J.S.; Nelson, N.; Nelson, C.B.

    1992-12-31

    The Environmental Protection Agency (EPA) has assessed the potential lung-cancer risk to the general population due to radon based on the Agency`s general principles of risk assessment. This same approach has been used to assess the impact on public health of other carcinogenic environmental pollutants. This paper briefly describes the application of EPA`s approach to radon and includes a description of the method used by the Agency to estimate that approximately 22,000 lung-cancer deaths per year may be related to radon exposure. Also presented are the weight of evidence for classifying radon as a known human carcinogen and the uncertainties associated with estimating risks from radon exposure. These combined factors reflect the extent of the underlying support and the context for EPA`s estimates of lung-cancer deaths.

  8. INFLUENCE OF DIETARY ARSENIC ON URINARY ARSENIC METABOLITE EXCRETION

    EPA Science Inventory

    Influence of Dietary Arsenic on Urinary Arsenic Metabolite Excretion

    Cara L. Carty, M.S., Edward E. Hudgens, B.Sc., Rebecca L. Calderon, Ph.D., M.S.P.H., Richard Kwok, M.S.P.H., Epidemiology and Biomarkers Branch/HSD, NHEERL/US EPA; David J. Thomas, Ph.D., Pharmacokinetics...

  9. EPA Hearing Sparks Controversy

    NASA Astrophysics Data System (ADS)

    Zielinski, Sarah

    2006-03-01

    The U.S. Environmental Protection Agency (EPA) is not investing enough money in the science needed for the agency to make sound environmental policy decisions, according to several witnesses who testified before a U.S. House of Representatives subcommittee on 16 March. The House Science Subcommittee on Environment, Technology, and Standards brought together George Gray, EPA associate administrator for research and development, and three other witnesses to discuss the proposed cuts to EPA's Office of Research and Development (ORD), the agency's primary research arm. The Bush Administration has proposed cutting the ORD budget by six percent in Fiscal Year 2007, to $557 million. This would continue a trend of decreases for ORD, whose budget would decline by 14 percent from FY2004 to FY2007 if the cuts are approved by the U.S. Congress.

  10. Summary of the EPA (Environmental Protection Agency) workshop on carcinogenesis bioassay via the dermal route. Final technical report

    SciTech Connect

    Not Available

    1987-04-29

    Traditionally, the oral route has been the most common route of administration in bioassays which tested the potential carcinogenicity of chemicals. Regulatory agencies, however, prefer to have test chemicals applied by the same route as expected human exposure, whenever possible. Since human exposure to industrial chemicals is frequently via the dermal route, this has become a route of choice for animal testing of certain chemicals. However, protocol design for dermal bioassays presents many unique problems which must be addressed before guidelines for bioassays by the dermal route can be formulated. Furthermore, it may be feasible to develop a limited dermal protocol to screen certain classes of chemicals such as acrylates/methacrylates. Recognizing the need for this workshop, it was designed in two distinct parts; to address the problems inherent in the development of a generic protocol for dermal bioassays and, a specific limited dermal bioassay protocol for acrylates/methacrylates.

  11. Current Status of EPA Verification Program for EPA Protocol Gases

    EPA Science Inventory

    Accurate compressed gas calibration standards are needed to calibrate continuous emission monitors (CEMs) and ambient air quality monitors that are being used for regulatory purposes. US Environmental Protection Agency (EPA) established its traceability protocol to ensure that c...

  12. EPA Protocol Gas Verification Program

    EPA Science Inventory

    Accurate compressed gas calibration standards are needed to calibrate continuous emission monitors (CEMs) and ambient air quality monitors that are being used for regulatory purposes. US Environmental Protection Agency (EPA) established its traceability protocol to ensure that co...

  13. Approval of Hospital/Medical/Infectious Waste Incinerator State Plan for designated facilities and pollutants: Indiana. Environmental Protection Agency (EPA). Direct final rule.

    PubMed

    1999-12-17

    EPA is approving Indiana's State Plan for Hospital/Medical/Infectious Waste Incinerators (HMIWI), submitted on September 30, 1999. The State Plan adopts and implements the Emissions Guidelines (EG) applicable to existing HMIWIs. This approval means that EPA finds the State Plan meets Clean Air Act (Act) requirements. Once effective, this approval makes the State Plan federally enforceable.

  14. Naturally Occurring Arsenic in Ground Water, Norman, Oklahoma, 2004, and Remediation Options for Produced Water

    USGS Publications Warehouse

    Smith, S. Jerrod; Christenson, Scott

    2005-01-01

    In 2000, the U.S. Environmental Protection Agency (EPA) reviewed the arsenic drinking water standard for public water supplies. Considering the available research and statistics on the health effects of arsenic ingestion, the EPA reduced the Maximum Contaminant Level (MCL) for public drinking water from 50 micrograms per liter (?g/L) to 10 ?g/L (U.S. Environmental Protection Agency, 2001a). As a result of the more stringent standard, the EPA estimates that about 3,000 public water providers across the United States must take action to meet the new standard before it becomes effective on January 23, 2006 (U.S. Environmental Protection Agency, 2001b). The City of Norman (City) is one of several Oklahoma municipalities affected by the new arsenic standard. About 20 percent of Norman?s water is supplied by wells completed in the Central Oklahoma (Garber-Wellington) aquifer; the rest is supplied by Lake Thunderbird (fig. 1) or purchased from Oklahoma City. The Norman well field is composed of 24 active wells, and water produced from about half of the wells will not be in compliance with the new MCL (figs. 2 and 3). Chemical treatment of water with elevated arsenic is possible, but it is generally cost prohibitive. Another costly solution is simply to abandon the high-arsenic wells and replace them with new wells in low-arsenic areas. In the next phase of well construction beginning in 2005, the City plans to construct as many as 30 new wells in northeast Norman (Bryan Mitchell, City of Norman, oral commun., 2005). The new wells will replace production lost to the new arsenic standard and add new production to keep pace with rapidly growing consumer demand. Well modification to exclude arsenic-bearing water from existing wells is a more cost-effective solution, but it requires a great deal of knowledge about local aquifer properties and individual well dynamics to decide which wells are good candidates for modification. With the goal of determining if well modification

  15. ENZYMOLOGY OF ARSENIC METHYLATION

    EPA Science Inventory

    Enzymology of Arsenic Methylation

    David J. Thomas, Pharmacokinetics Branch, Experimental Toxicology Division, National
    Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park...

  16. EPA (Environmental Protection Agency) evaluation of the Cyclone-Z device under Section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Syria, S.L.

    1983-01-01

    This document announces the conclusions of the EPA evaluation of the Cyclone-Z device under the provisions of Section 511 of the Motor Vehicle Information and Cost Savings Act. The evaluation of the Cyclone-Z device was conducted upon receiving an application from the marketer. The device is claimed to improve fuel economy and driveability and to reduce exhaust emissions. EPA fully considered all of the information submitted by the applicant. The evaluation of the Cyclone-Z device was based on that information, EPA's engineering judgement, and its experience with other air bleed devices.

  17. Environmental Protection Agency (EPA) evaluation of the Super-Mag Fuel Extender under Section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Ashby, H.A.

    1982-01-01

    This document announces the conclusions of the EPA evaluation of the 'Super-Mag Fuel Extender' device under provisions of Section 511 of the Motor Vehicle Information and Cost Savings Act. On December 10, 1980, the EPA received a written request from the Metropolitan Denver District Attorney's Office of Consumer Fraud and Economic Crime to test at least one 'cow magnet' type of fuel economy device. Following a survey of devices being marketed, the Metropolitan Denver District Attorney's Office selected the 'Super-Mag' device as typical of its category and on April 13, 1981 provided EPA with units for testing. The EPA evaluation of the device using three vehicles showed neither fuel economy nor exhaust emissions were affected by the installation of the 'Super-Mag' device. In addition, any differences between baseline test results and results from tests with the device installed were within the range of normal test variability.

  18. EPA (Environmental Protection Agency) evaluation of the POWERFuel Extender System under Section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Syria, S.L.

    1983-08-01

    The evaluation of the POWERFuel Extender System was conducted upon the application of the manufacturer. The device is claimed to improve fuel economy and driveability and to reduce exhaust emissions and required engine maintenance. The device is classified by EPA as a vapor-air bleed device. EPA fully considered all of the information submitted by the applicant. The evaluation of the POWERFuel Extender System was based on that information and on EPA's experience with other similar devices. Although, in theory, the introduction of alcohol and water could have a favorable effect on an engine's cleaniness, power and maintenance requirements and could even allow some vehicles to use lower octane fuel, data were not submitted to substantiate that the POWERFuel Extender System could cause these benefits.

  19. EPA (Environmental Protection Agency) evaluation of the P. S. C. U. 01 device under section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Syria, S.L.

    1983-08-01

    This document announces the conclusions of the EPA evaluation of the 'P.S.C.U. 01' device under the provisions of Section 511 of the Motor Vehicle Information and Cost Savings Act. The evaluation of the P.S.C.U. 01 was conducted upon the application of Dutch Pacific, Incorporated. The device is comprised of several mechanical and electrical components and is intended to generate steam and deliver it to the combustion chamber via an inline catalyst. The device is claimed to improve fuel economy and to reduce exhaust emissions. The P.S.C.U. 01 is classified by EPA as a Vapor bleed device.

  20. Arsenic, nitrate, and chloride in groundwater, Oakland County, Michigan

    USGS Publications Warehouse

    Aichele, Stephen S.; Hill-Rowley, Richard; Malone, Matt

    1998-01-01

    In 1996, the U.S. Geological Survey (USGS), in cooperation with the Michigan Department of Environmental Quality (MDEQ) and nine southeast Michigan counties, began a study of the factors controlling arsenic concentrations in drinking water. The early results of this study raised broader concerns in Oakland County about the quality of groundwater in general and drinking water in particular. In response to these concerns, Oakland County worked with the USGS and the Center for Applied Environmental Research at the University of Michigan - Flint (CAER) to study distributions of arsenic, nitrate and chloride in groundwater, with emphasis on sites where concentrations of these constituents exceeded the Maximum Contaminant Levels (MCLs) and Secondary Maximum Contaminant Levels (SMCLs) set by the U.S. Environmental Protection Agency (EPA). The maps produced for this report are based on historical data compiled from MDEQ records.

  1. Aquifer Vulnerability to Arsenic contamination in the Conterminous United States: Health Risks and Economic Implications

    NASA Astrophysics Data System (ADS)

    Twarakavi, N. C.; Kaluarachchi, J. J.

    2004-12-01

    Arsenic is historically known be toxic to human health. Drinking water contaminated with unsafe levels of arsenic may cause cancer. The toxicity of arsenic is suggested by a MCLG of zero and a low MCL of 10 µg/L, that has been a subject of constant scrutiny. The US Environmental Protection Agency (US EPA), based on the recommendations of the National Academy of Sciences revised the MCL from 1974 value of 50 µg/L to 10 µg/L. The decision was based on a national-level analysis of arsenic concentration data collected by the National Analysis of Water Quality Assessment (NAWQA). Another factor that makes arsenic in drinking water a major issue is the widespread occurrence and a variety of sources. Arsenic occurs naturally in mineral deposits and is also contributed through anthropogenic sources. A methodology using the ordinal logistic regression (LR) method is proposed to predict the probability of occurrence of arsenic in shallow ground waters of the conterminous United States (CONUS) subject to a set of influencing variables. The analysis considered the maximum contaminant level (MCL) options of 3, 5, 10, 20, and 50 µg/L as threshold values to estimate the probabilities of arsenic occurrence in ranges defined by a given MCL and a detection limit of 1 µg/L. The fit between the observed and predicted probability of occurrence was around 83% for all MCL options. The estimated probabilities were used to estimate the median background concentration of arsenic for different aquifer types in the CONUS. The shallow ground water of the western US is more vulnerable to arsenic contamination than the eastern US. Arizona, Utah, Nevada, and California in particular are hotspots for arsenic contamination. The model results were extended for estimating the health risks and costs posed by arsenic occurrence in the ground water of the United States. The risk assessment showed that counties in southern California, Arizona, Florida, Washington States and a few others scattered

  2. EPA (Environmental Protection Agency) evaluation of the HYDRO-VAC device under Section 511 of the Motor Vehicle Information and Cost Savings Act. Technical report

    SciTech Connect

    Syria, S.L.

    1983-08-01

    This document announces the conclusions of the EPA evaluation of the HYDRO-VAC device under section 511 of the Motor Vehicle Information and Cost Savings Act. The evaluation of the HYDRO-VAC device was conducted upon the application of the manufacturer. The product is claimed to improved fuel economy and performance for both gasoline and diesel fueled vehicles.

  3. 78 FR 18589 - EPA Office of External Affairs and Environmental Education; Request for Nominations of Candidates...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-27

    ... AGENCY EPA Office of External Affairs and Environmental Education; Request for Nominations of Candidates for the National Environmental Education Advisory Council AGENCY: Environmental Protection Agency (EPA... Affairs and Environmental Education (OEAEE) Staff Office is soliciting applications for...

  4. Arsenic in Drinking Water—A Global Environmental Problem

    NASA Astrophysics Data System (ADS)

    Shaofen Wang, Joanna; Wai, Chien M.

    2004-02-01

    Arsenic contamination of groundwater is a global environmental problem affecting a large number of populations, especially in developing countries. The "blackfoot disease"that occurred in Taiwan more than half of a century ago was attributed to drinking arsenic-contaminated water from deep wells containing high concentrations of the trivalent arsenite species. Similar arsenic poisoning cases were reported later in Chinese Inner Mongolia, Bangladesh, and India—all related to drinking groundwater contaminated with arsenic. The maximum contaminant level (MCL) of arsenic in drinking water has been changed recently by the U.S. EPA from 50 ppb to 10 ppb; the compliance date is January 2006. This article summarizes documented global arsenic contamination problems, the regulatory controversy regarding MCL of arsenic in drinking water, and available technologies for removing arsenic from contaminated waters. Methods for analyzing total arsenic and arsenic species in water are also described.

  5. Considerations in deriving quantitative cancer criteria for inorganic arsenic exposure via inhalation.

    PubMed

    Lewis, Ari S; Beyer, Leslie A; Zu, Ke

    2015-01-01

    The inhalation unit risk (IUR) that currently exists in the United States Environmental Protection Agency's (US EPA's) Integrated Risk Information System was developed in 1984 based on studies examining the relationship between respiratory cancer and arsenic exposure in copper smelters from two US locations: the copper smelter in Anaconda, Montana, and the American Smelting And Refining COmpany (ASARCO) smelter in Tacoma, Washington. Since US EPA last conducted its assessment, additional data have become available from epidemiology and mechanistic studies. In addition, the California Air Resources Board, Texas Commission of Environmental Quality, and Dutch Expert Committee on Occupational Safety have all conducted new risk assessments. All three analyses, which calculated IURs based on respiratory/lung cancer mortality, generated IURs that are lower (i.e., less restrictive) than the current US EPA value of 4.3×10(-3) (μg/m(3))(-1). The IURs developed by these agencies, which vary more than 20-fold, are based on somewhat different studies and use different methodologies to address uncertainties in the underlying datasets. Despite these differences, all were developed based on a cumulative exposure metric assuming a low-dose linear dose-response relationship. In this paper, we contrast and compare the analyses conducted by these agencies and critically evaluate strengths and limitations inherent in the data and methodologies used to develop quantitative risk estimates. In addition, we consider how these data could be best used to assess risk at much lower levels of arsenic in air, such as those experienced by the general public. Given that the mode of action for arsenic supports a threshold effect, and epidemiological evidence suggests that the arsenic concentration in air is a reliable predictor of lung/respiratory cancer risk, we developed a quantitative cancer risk analysis using a nonlinear threshold model. Applying a nonlinear model to occupational data, we

  6. EPA GEOSPATIAL QUALITY COUNCIL

    EPA Science Inventory

    The EPA Geospatial Quality Council (previously known as the EPA GIS-QA Team - EPA/600/R-00/009 was created to fill the gap between the EPA Quality Assurance (QA) and Geospatial communities. All EPA Offices and Regions were invited to participate. Currently, the EPA Geospatial Q...

  7. Hazardous waste management system standards for owners and operators of hazardous waste treatment, storage, and disposal facilities and EPA administered permit programs; hazardous waste permit program. Environmental Protection Agency. Interim final amendments to rule.

    PubMed

    1982-02-25

    On May 19, 1980, EPA promulgated regulations applicable to owners and operators of hazardous waste treatment, storage, and disposal facilities which prohibited the landfill disposal of most containerized liquid waste or waste containing free liquid on and after November 19, 1981. Further on June 29, 1981, EPA amended its hazardous waste management regulations so as to extend the compliance date of the restriction on the landfill disposal of containerized liquid ignitable wastes to coincide with the compliance data of the general restriction on landfill disposal of liquids. The Agency is today extending the compliance date on both these requirements until May 26, 1982, and, in a separate action, is proposing amendments to these restrictions. This extension of compliance dates is provided for the sole purpose of allowing time to complete the rulemaking action on today's proposed amendments. The Agency is also today exempting from the requirements of the hazardous waste management regulations, the acts of adding absorbent material to hazardous waste in containers and adding hazardous waste to absorbent material in a container, at the time waste is first placed in the container, in order to reduce the free liquids in a container.

  8. EPA's Program for Asbestos Containing Materials in School Buildings.

    ERIC Educational Resources Information Center

    Johnson, Kirk A.

    1979-01-01

    Comments from the Environmental Protection Agency (EPA) concerning three recommendations (in an article in a previous issue of this journal about inspecting schools for asbestos-containing materials) that are in direct conflict with those offered by EPA. (MLF)

  9. Exposure to arsenic and lead of children living near a copper-smelter in San Luis Potosi, Mexico: Importance of soil contamination for exposure of children.

    PubMed

    Carrizales, Leticia; Razo, Israel; Téllez-Hernández, Jesús I; Torres-Nerio, Rocío; Torres, Arturo; Batres, Lilia E; Cubillas, Ana-Cristina; Díaz-Barriga, Fernando

    2006-05-01

    The objective of this study was to assess the levels of soil contamination and child exposure in areas next to a primary smelter (arsenic-copper metallurgical) located in the community of Morales in San Luis Potosi, Mexico. In Morales, 90% of the soil samples studied in this work were above 400 mg/kg of lead, and above 100 mg/kg of arsenic, which are guidelines recommended by the United States Environmental Protection Agency (EPA). Bioaccessibility of these metals was studied in vitro in 10 soil samples; the median values of bioaccessibility obtained in these samples were 46.5% and 32.5% for arsenic and lead. Since the concentrations of arsenic and lead in soil were above normal values, and taking into account the bioaccessibility results, exposure to these metals was evaluated in children. Regarding lead, children aged 3-6 years had the highest mean blood lead levels; furthermore, 90% of them had concentrations above 10 microg/dl (CDC's action level). Total urinary arsenic was higher in children aged 8-9 yr; however, the percentage of children with concentrations above 50 microg/g creatinine (CDC's action level) or 100 microg/g creatinine (World Health Organization [WHO] action level) was similar among different age groups. Using the EPAs integrated exposure uptake biokinetic model for lead in children (IEUBK), we estimated that 87% of the total lead in blood is obtained from the soil/dust pathway. The exposure dose to arsenic, estimated for the children living in Morales using Monte Carlo analysis and the arsenic concentrations found in soil, was above the EPA's reference dose. With all these results, it is evident that studies are needed in order to identify adverse health effects in children living in Morales; nevertheless, it is more important to develop a risk reduction program as soon as possible.

  10. THE PATHWAY OF ARSENIC METABLISM

    EPA Science Inventory

    The Pathway of Arsenic Methylation

    David J. Thomas, Experimental Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC

    Understanding ...

  11. 40 CFR 61.184 - Ambient air monitoring for inorganic arsenic.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... arsenic. 61.184 Section 61.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... for Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities § 61.184 Ambient air monitoring for inorganic arsenic. (a) The owner or operator of each source to...

  12. 40 CFR 61.184 - Ambient air monitoring for inorganic arsenic.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... arsenic. 61.184 Section 61.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... for Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities § 61.184 Ambient air monitoring for inorganic arsenic. (a) The owner or operator of each source to...

  13. 40 CFR 61.184 - Ambient air monitoring for inorganic arsenic.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... arsenic. 61.184 Section 61.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... for Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities § 61.184 Ambient air monitoring for inorganic arsenic. (a) The owner or operator of each source to...

  14. 40 CFR 61.184 - Ambient air monitoring for inorganic arsenic.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... arsenic. 61.184 Section 61.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... for Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities § 61.184 Ambient air monitoring for inorganic arsenic. (a) The owner or operator of each source to...

  15. 40 CFR 61.184 - Ambient air monitoring for inorganic arsenic.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... arsenic. 61.184 Section 61.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... for Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities § 61.184 Ambient air monitoring for inorganic arsenic. (a) The owner or operator of each source to...

  16. Arsenic Removal from Drinking Water by Point of Entry/Point of Use Adsorptive Media U.S. EPA Demonstration Project at Oregon Institute of Technology at Klamath Falls, OR - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal treatment technology demonstration project at Oregon Institute of Technology (OIT) at Klamath Falls, OR. The objectives of the project were to evaluate: (1) the effectiveness...

  17. EPA'S ENVIRONMENTAL TECHNOLOGY VERIFICATION PROGRAM

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) has evaluated technologies to determine their effectiveness in monitoring, preventing, controlling, and cleaning up pollution. Since the early 1990s, however, numerous government and private groups have determined that the lack of a...

  18. Uncertainties drive arsenic rule delay

    SciTech Connect

    Pontius, F.W.

    1995-04-01

    The US Environmental Protection Agency (USEPA) is under court order to sign a proposed rule for arsenic by Nov. 30, 1995. The agency recently announced that it will not meet this deadline, citing the need to gather additional information. Development of a National Interim Primary Drinking Water Regulation for arsenic has been delayed several times over the past 10 years because of uncertainties regarding health issues and costs associated with compliance. The early history of development of the arsenic rule has been reviewed. Only recent developments are reviewed here. The current maximum contaminant level (MCL) for arsenic in drinking water is 0.05 mg/L. This MCL was set in 1975, based on the 1962 US Public Health Standards. The current Safe Drinking Water Act (SDWA) requires that the revised arsenic MCL be set as close to the MCL goal (MCLG) as is feasible using best technology, treatment techniques, or other means and taking cost into consideration.

  19. 40 CFR 725.50 - EPA review.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false EPA review. 725.50 Section 725.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS Administrative Procedures § 725.50 EPA review. (a)...

  20. 40 CFR 725.50 - EPA review.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false EPA review. 725.50 Section 725.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS Administrative Procedures § 725.50 EPA review. (a)...

  1. NARSTO EPA SS ATLANTA RAPID SPMS DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS ATLANTA RAPID SPMS DATA Project Title:  NARSTO ...   Order Data Guide Documents:  Atlanta SPMS Guide EPA Sites Get Google Earth ... Data:  Environmental Protection Agency Supersites Atlanta, Georgia SCAR-B Block:  ...

  2. The EPA Children's Environmental Health Yearbook Supplement.

    ERIC Educational Resources Information Center

    Environmental Protection Agency, Washington, DC. Office of Children's Health Protection.

    Through their environments, children are exposed to a wide variety of substances that provide a risk to children's health. This report provides information to the public on the work of the Environmental Protection Agency (EPA) related to children's health protection, summarizing initiatives undertaken since the publication of "The EPA Children's…

  3. Carbon Pollution Guidelines Proposed by EPA

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    2014-06-01

    A proposal released by the U.S. Environmental Protection Agency (EPA) on 2 June would, for the first time, cut carbon pollution from existing fossil fuel-fired electric-generating units, which EPA says accounts for about one third of greenhouse gas emissions in the United States.

  4. 40 CFR 725.50 - EPA review.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false EPA review. 725.50 Section 725.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS Administrative Procedures § 725.50 EPA review. (a)...

  5. THE IMPACT OF EPA'S GREEN POWER PURCHASES

    EPA Science Inventory

    All federal agencies, including EPA, are required to reduce life-cycle greenhouse gas emissions attributed to facility energy use by 30% below 1990 levels by 2010. A key approach to reducing facility greenhouse gas emissions, employed by EPA, involves the purchase of "green power...

  6. EPA Pushing Improved Air Quality in Schools.

    ERIC Educational Resources Information Center

    Sack, Joetta L.

    2002-01-01

    Discusses how, in response to the growing problem of poor air quality in schools, the Environmental Protection Agency (EPA) has set new voluntary air-quality guidelines for schools. Addresses common air-related irritants; successful efforts at Guerrero Elementary School in Mesa, Arizona; preventive maintenance; and a sample of the EPA's…

  7. Research Funding Set for NSF, NASA, EPA.

    ERIC Educational Resources Information Center

    Chemical and Engineering News, 1982

    1982-01-01

    Funds (1983) for National Science Foundation (NSF), National Aeronautics and Space Administration (NASA), and Environmental Protection Agency (EPA) research programs include $1,092,200,000 (NSF), $5.5 billion (NASA), and $119 million (EPA). NSF's science education activities were raised to $30 million in spite of the Administration's plan to phase…

  8. Response of the US EPA (Environmental Protection Agency) region 5 states to the nonpoint source reporting requirements of the 1987 Clean Water Act amendments. Technical report

    SciTech Connect

    Hautman, N.

    1988-01-01

    This report attempts to determine the extent of nonpoint source pollution in Region V. The report analyzes and summarizes the nonpoint source and clean lakes reports required under the Clean Water Act amendments of 1987. The reports share common elements such as a focus on agricultural sources and the use of hard data as well as professional judgment. However, they differ in overall design, definitions of key elements, level of analysis, thoroughness, and effectiveness. The summary considers the reports from two aspects: structure and the extent to which they comply with Sec. 319 and U.S. EPA reports as they are constructed. Information in the 305 (b) reports adds to the scope of each state's nonpoint source program and is referred to here. Following the summary is a discussion, accompanied by appropriate tables, of the nonpoint source pollution extent.

  9. 78 FR 38029 - Information Collection Request Submitted to OMB for Review and Approval; Comment Request; EPA's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-25

    ... additional information about EPA's public docket, visit http://www.epa.gov/dockets . Abstract: EPA's Design... AGENCY Information Collection Request Submitted to OMB for Review and Approval; Comment Request; EPA's Design for the Environment Formulator Product Recognition Program AGENCY: Environmental Protection...

  10. "EPA'S NATIONAL BEACHES STUDY: HUNTINGTON BEACH, 2003"

    EPA Science Inventory

    The original U. S. Environmental Protection Agency (EPA) recreational water health studies, initiated in 1972 and completed in 1982, were designed to determine the relationship between swimming-associated gastroenteritis and the quality of the bathing water. However, these healt...

  11. NARSTO EPA SS PITTSBURGH PM COMPOSITION DATA

    Atmospheric Science Data Center

    2014-04-25

    ... Transmission ICP - MS - Inductively Coupled Plasma Mass Spectrometer Ion Chromatograph Location:  Pittsburgh, ... Readme Files:  EPA Sites Get Google Earth Related Data:  Environmental Protection Agency ...

  12. EPA Use of Ecological Nonmarket Valuation

    EPA Science Inventory

    This essay was motivated by a workshop at which numerous investigators presented advancements in nonmarket valuation . Much of the research, and the workshop itself were US Environmental Protection Agency (EPA) funded, and indeed the typical expected application was environmental...

  13. Bill would bolster science at EPA

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    Since its establishment in 1970, the U.S. Environmental Protection Agency (EPA) has primarily served as a regulatory agency with a significant science component. However, the agency's scientific practices and performance at times have been criticized by the U.S. General Accounting Office, the National Academies of Science (NAS), Congress, and EPA's own science advisory board, as well as in a number of lawsuits.New legislation introduced by Rep. Vernon Ehlers (R-Mich.), chair of the House of Representatives' Science Subcommittee on Environment, Technology, and Standards, includes measures meant to improve the agency's science component. The legislation, H.R. 64, would require the president to appoint an EPA deputy administrator for science and technology This deputy administrator, who would rank higher than existing assistant administrators (AAs), would be responsible for the overall scientific and technical foundation of the agency's decisions, including ensuring that the agency's scientific endeavors use the best possible peer review and research planning practices.

  14. Effectiveness of the Preservation Protocol within the Environmental Protection Agency (EPA) Method 200.8 for Soluble and Particulate Lead Recovery in Drinking Water

    EPA Science Inventory

    Lead (Pb) is a toxic trace metal that is regulated in drinking water. The U.S. Environmental Protection Agency (USEPA) issued the Lead and Copper Rule (LCR), which defines the action level for lead at the tap as 0.015 mg/L. Researchers and drinking water utilities typically emplo...

  15. Arsenic Methyltransferase

    EPA Science Inventory

    The metalloid arsenic enters the environment by natural processes (volcanic activity, weathering of rocks) and by human activity (mining, smelting, herbicides and pesticides). Although arsenic has been exploited for homicidal and suicidal purposes since antiquity, its significan...

  16. US EPA GEOSPATIAL QUALITY COUNCIL: ENSURING QUALITY IN GEOPSPATIAL SOLUTIONS

    EPA Science Inventory

    In 1999, the U.S. Environmental Protection Agency (EPA), Office of Research and Development, Environmental Sciences Division, created the EPA Geospatial Quality Council (GQC) to fill the gap between the EPA Quality Assurance (QA) and Geospatial communities. GQC participants inclu...

  17. ARSENIC REMOVAL FROM DRINKING WATER BY IRON REMOVAL. USEPA DEMONSTRATION PROJECT AT CLIMAX, MN. PROJECT SUMMARY

    EPA Science Inventory

    This document is an eight page summary of the final report on arsenic demonstration project at Climax, MN (EPA/600/R-06/152). The objectives of the project are to evaluate the effectiveness of the Kinetico iron removal system in removing arsenic to meet the new arsenic maximum co...

  18. 77 FR 1687 - EPA Workshops on Achieving Water Quality Through Integrated Municipal Stormwater and Wastewater...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-11

    ... AGENCY EPA Workshops on Achieving Water Quality Through Integrated Municipal Stormwater and Wastewater Plans Under the Clean Water Act (CWA) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice... water quality objectives of the CWA. The workshops are intended to assist EPA in developing...

  19. 75 FR 29338 - EPA Board of Scientific Counselors Advisory Board; Notice of Charter Renewal

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-25

    ... AGENCY EPA Board of Scientific Counselors Advisory Board; Notice of Charter Renewal AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of charter renewal. Notice is hereby given that the Environmental... Committee Act (FACA), 5 U.S.C. App.2, the EPA Board of of Scientific Counselors Advisory Board (BOSC) is...

  20. 77 FR 32088 - EPA Board of Scientific Counselors Advisory Board; Notice of Charter Renewal

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-31

    ... AGENCY EPA Board of Scientific Counselors Advisory Board; Notice of Charter Renewal AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of Charter Renewal. Notice is hereby given that the Environmental... Committee Act (FACA), 5 U.S.C. App.2, the EPA Board of Scientific Counselors Advisory Board (BOSC) is...

  1. Arsenic Removal from Drinking Water by Oxidation/Filtration and Adsorptive Media, U.S. EPA Demonstration Project at Clinton Christian School in Goshen, IN - Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the arsenic removal treatment technology demonstration project at the Clinton Christian School in Goshen, IN. The objectives of the project were to evaluate the effectiveness of AdEdge Technologies’...

  2. Arsenic and Antimony Removal from Drinking Water by Adsorptive Media - U.S. EPA Demonstration Project at South Truckee Meadows General Improvement District (STMGID), NV, Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the operation of an arsenic and antimony removal technology demonstrated at the South Truckee Meadows General Improvement District (STMGID) in Washoe County, NV. The objectives of the project wer...

  3. Arsenic and Antimony Removal from Drinking Water by Point-of-Entry Reverse Osmosis Coupled with Dual Plumbing Distribution - U.S. EPA Demonstration Project at Carmel Elementary School in Carmel, ME -Final Performance Evaluation Report

    EPA Science Inventory

    This report documents the activities performed for and the results obtained from the arsenic and antimony removal treatment technology demonstration project at the Carmel Elementary School (CES) in Carmel, ME. An innovative approach of employing point of entry (POE) reverse osmo...

  4. ARSENIC REMOVAL FROM DRINKING WATER BY POINT-OF-USE (POU) REVERSE OSMOSIS. U.S. EPA DEMONSTRATION PROJECT AT SUNSET RANCH DEVELOPMENT IN HOMEDALE, ID. FINAL PERFORMANCE EVALUATION REPORT

    EPA Science Inventory

    This report documents the activities performed during and the results obtained from the arsenic removal technology demonstration project at the Sunset Ranch Development in Homedale, ID. The objectives of the project are to evaluate: 1) the effectiveness of a point of use (POU) re...

  5. EPA (Environmental Protection Agency) method study 23a, method 501. 1, trihalomethanes by purge and trap (reannouncement of PB84-169994 - see notes field for explanation)

    SciTech Connect

    Warner, B.J.; Cheng, S.C.; Friedman, C.S.; Mitrosky, S.; Snyder, A.D.

    1984-03-01

    The experimental design and the results of an interlaboratory study of U.S. Environmental Protection Agency (USEPA) method 501.1 to detect trihalomethanes in drinking water are described herein. In the method, trihalomethanes are extracted by an inert gas which is bubbled through the aqueous sample. The vapors are then trapped on a short column containing a suitable sorbent. The trapped compounds are subsequently thermally desorbed onto the head of a gas chromatographic column. An electrolytic conductivity detector is used to measure the compounds. The six concentrations of spiking solutions contained chloroform, bromodichloromethane, chlorodibromomethane and bromoform. The two waters used in the study were distilled and drinking water, both supplied by the individual laboratories. Statistical analyses and conclusions in this report are based on analytical data obtained by twenty collaborating laboratories. This report was submitted in partial fulfillment of contract 68-03-2856 by Monsanto Research Corporation under the sponsorship of the U.S. Environmental Protection Agency. The report covers a period from September 1979 to December 1982.

  6. Phytoremediation of arsenic-contaminated groundwater by the arsenic hyperaccumulating fern Pteris vittata L.

    PubMed

    Tu, S; Ma, Lena Q; Fayiga, Abioye O; Zillioux, Edward J

    2004-01-01

    Arsenic concentrations in a much larger fraction of U.S. groundwater sources will exceed the maximum contaminant limit when the new 10 microg L(-1) EPA standard for drinking water takes effect in 2006. Thus, it is important to develop remediation technologies that can meet this new standard. Phytoremediation of arsenic-contaminated groundwater is a relatively new idea. In this research, an arsenic-hyperaccumulating fern, commonly known as Chinese Brake fern (Pteris vittata L.), was grown hydroponically to examine its effectiveness in arsenic removal from what is believed to be herbicide-contaminated groundwater. One plant grown in 600 mL of groundwater effectively reduced the arsenic concentration from 46 to less than 10 microg L(-1) in 3 days. Re-used plants continued to take up arsenic from the groundwater, albeit at a slower rate (from 46 to 20 microg L(-1) during the same time). Young fern plants were more efficient in removing arsenic than were older fern plants of similar size. The addition of a supplement of phosphate-free Hoagland nutrition to the groundwater had little effect on arsenic removal, but the addition of phosphate nutrition significantly reduced its arsenic affinity and, thus, inhibited the arsenic removal. This study suggested that Chinese Brake has some potential to remove arsenic from groundwater.

  7. 76 FR 44581 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-26

    ... February 4, 2011 (76 FR 6460), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received no... Request; EPA's Natural Gas STAR Program (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION... docket, go to http://www.regulations.gov . Title: EPA's Natural Gas STAR Program. ICR Numbers: EPA ICR...

  8. 40 CFR 3.20 - How will EPA provide notice of changes to the Central Data Exchange?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... AGENCY GENERAL CROSS-MEDIA ELECTRONIC REPORTING Electronic Reporting to EPA § 3.20 How will EPA provide... section, whenever EPA plans to change Central Data Exchange hardware or software in ways that would...

  9. EPA rule could cut pollutants

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    The U.S. Environmental Protection Agency issued a rule on November 14 that it claims could nearly eliminate dioxin discharges into waterways and reduce other toxic pollutants into the air and water from 155 pulp and paper mills.EPA estimates that results will include a 96% reduction in dioxin and a nearly 60% reduction in toxic air pollutants. Also, volatile organic compounds and sulfur emissions could be cut in half, with particulate matter cut by 37%.

  10. [Arsenic - Poison or medicine?].

    PubMed

    Kulik-Kupka, Karolina; Koszowska, Aneta; Brończyk-Puzoń, Anna; Nowak, Justyna; Gwizdek, Katarzyna; Zubelewicz-Szkodzińska, Barbara

    2016-01-01

    Arsenic (As) is commonly known as a poison. Only a few people know that As has also been widely used in medicine. In the past years As and its compounds were used as a medicine for the treatment of such diseases as diabetes, psoriasis, syphilis, skin ulcers and joint diseases. Nowadays As is also used especially in the treatment of patients with acute promyelocytic leukemia. The International Agency for Research on Cancer (IARC) has recognized arsenic as an element with carcinogenic effect evidenced by epidemiological studies, but as previously mentioned it is also used in the treatment of neoplastic diseases. This underlines the specificity of the arsenic effects. Arsenic occurs widely in the natural environment, for example, it is present in soil and water, which contributes to its migration to food products. Long exposure to this element may lead to liver damages and also to changes in myocardium. Bearing in mind that such serious health problems can occur, monitoring of the As presence in the environmental media plays a very important role. In addition, the occupational risk of As exposure in the workplace should be identified and checked. Also the standards for As presence in food should be established. This paper presents a review of the 2015 publications based on the Medical database like PubMed and Polish Medical Bibliography. It includes the most important information about arsenic in both forms, poison and medicine.

  11. IRIS Toxicological Review of Inorganic Arsenic (Preliminary Assessment Materials)

    EPA Science Inventory

    In April 2014, EPA released the draft literature searches and associated search strategies, evidence tables, and exposure response arrays for inorganic arsenic (iAs) to obtain input from stakeholders and the public prior to developing the draft IRIS assessment. Specifically, EPA ...

  12. USEPA ARSENIC REMOVAL FULL-SCALE DEMONSTRATION PROGRAM

    EPA Science Inventory

    On October 31, 2001 EPA announced that the final standard for arsenic in drinking water of ten parts per billion (10 ppb) would become effective on February 22, 2002 without any further action by EPA. This means that the standard will be implemented as specified in the January 22...

  13. Autism spectrum disorder prevalence and associations with air concentrations of lead, mercury, and arsenic.

    PubMed

    Dickerson, Aisha S; Rahbar, Mohammad H; Bakian, Amanda V; Bilder, Deborah A; Harrington, Rebecca A; Pettygrove, Sydney; Kirby, Russell S; Durkin, Maureen S; Han, Inkyu; Moyé, Lemuel A; Pearson, Deborah A; Wingate, Martha Slay; Zahorodny, Walter M

    2016-07-01

    Lead, mercury, and arsenic are neurotoxicants with known effects on neurodevelopment. Autism spectrum disorder (ASD) is a neurodevelopmental disorder apparent by early childhood. Using data on 4486 children with ASD residing in 2489 census tracts in five sites of the Centers for Disease Control and Prevention's Autism and Developmental Disabilities Monitoring (ADDM) Network, we used multi-level negative binomial models to investigate if ambient lead, mercury, and arsenic concentrations, as measured by the US Environmental Protection Agency National-Scale Air Toxics Assessment (EPA-NATA), were associated with ASD prevalence. In unadjusted analyses, ambient metal concentrations were negatively associated with ASD prevalence. After adjusting for confounding factors, tracts with air concentrations of lead in the highest quartile had significantly higher ASD prevalence than tracts with lead concentrations in the lowest quartile (prevalence ratio (PR) = 1.36; 95 '% CI: 1.18, 1.57). In addition, tracts with mercury concentrations above the 75th percentile (>1.7 ng/m(3)) and arsenic concentrations below the 75th percentile (≤0.13 ng/m(3)) had a significantly higher ASD prevalence (adjusted RR = 1.20; 95 % CI: 1.03, 1.40) compared to tracts with arsenic, lead, and mercury concentrations below the 75th percentile. Our results suggest a possible association between ambient lead concentrations and ASD prevalence and demonstrate that exposure to multiple metals may have synergistic effects on ASD prevalence.

  14. EPA's proposal to revise the PM standards

    SciTech Connect

    Steve Page

    2006-06-15

    Over the next few months, the US Environmental Protection Agency (EPA) will be finalizing its proposal to revise the National Ambient Air Quality Standards (NAAQS) for fine and coarse particulate matter (PM). Since issuing the proposal in December 2005, the agency has sought comments from all interested parties, and will base its final decision on the record that was established through the comment period, which ended on April 17. In this issue articles present perspectives from some of the many non-EPA stakeholders who have played an important role in this review process. This article summarizes EPA's proposal, as well as the extensive process EPA goes through when setting air quality standards. 1 fig., 2 tabs.

  15. Arsenic poisoning.

    PubMed

    Schoolmeester, W L; White, D R

    1980-02-01

    Arsenic poisoning continues to require awareness of its diverse clinical manifestations. Industry is the major source of arsenic exposure. Although epidemiologic studies strongly contend that arsenic is carcinogenic, there are little supportive research data. Arsenic poisoning, both acute and chronic, is often overlooked initially in the evaluation of the patient with multisystem disease, but once it is suspected, many accurate methods are available to quantitate the amount and duration of exposure. Treatment with dimercaprol remains the mainstay of therapy, and early treatment is necessary to prevent irreversible complications.

  16. 76 FR 74053 - Agency Information Collection Activities; Proposed Collection; Comment Request; Reporting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-30

    ... Requirements Under EPA's Climate Leaders Partnership (Renewal) AGENCY: Environmental Protection Agency (EPA... . FOR FURTHER INFORMATION CONTACT: John Sottong, Climate Protection Partnerships Division, Office of... Inventory Pilot started during EPA's Climate Leaders Program. Title: Reporting Requirements Under...

  17. 75 FR 48325 - Agency Information Collection Activities: Proposed Collection; Comment Request; Underground...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-10

    ... Storage Tanks: Technical and Financial Requirements, and State Program Approval Procedures (Renewal), EPA...: U.S. Environmental Protection Agency, EPA Docket Center, Underground Storage Tanks Docket, Mail Code... Agency, EPA Docket Center, Underground Storage Tanks Docket, 1200 Pennsylvania Avenue, NW.,...

  18. Pancreatic cancer clusters and arsenic-contaminated drinking water wells in Florida

    PubMed Central

    2013-01-01

    Background We sought to identify high-risk areas of pancreatic cancer incidence, and determine if clusters of persons diagnosed with pancreatic cancer were more likely to be located near arsenic-contaminated drinking water wells. Methods A total of 5,707 arsenic samples were collected from December 2000 to May 2008 by the Florida Department of Health, representing more than 5,000 individual privately owned wells. During that period, 0.010 ppm (10 ppb) or greater arsenic levels in private well water were considered as the threshold based on standard of United States Environmental Protection Agency (EPA). Spatial modeling was applied to pancreatic cancer cases diagnosed between 1998–2002 in Florida (n = 11,405). Multivariable logistic regression was used to determine if sociodemographic indicators, smoking history, and proximity to arsenic-contaminated well sites were associated with residence at the time of pancreatic cancer diagnosis occurring within versus outside a cluster. Results Spatial modeling identified 16 clusters in which 22.6% of all pancreatic cancer cases were located. Cases living within 1 mile of known arsenic-contaminated wells were significantly more likely to be diagnosed within a cluster of pancreatic cancers relative to cases living more than 3 miles from known sites (odds ratio = 2.1 [95% CI = 1.9, 2.4]). Conclusions Exposure to arsenic-contaminated drinking water wells may be associated with an increased risk of pancreatic cancer. However, case–control studies are needed in order to confirm the findings of this ecological analysis. These cluster areas may be appropriate to evaluate pancreatic cancer risk factors, and to perform targeted screening and prevention studies. PMID:23510413

  19. Factors controlling arsenic adsorption in the environment

    SciTech Connect

    Wilkie, J.A.; Hering, J.G.

    1995-12-01

    Recent epidemiological studies on arsenic report that the cancer risk associated with arsenic at the current maximum contaminant level (MCL) of 50 {mu}g/L is much greater than previously believed. In response to these findings, the U.S. Environmental Protection Agency intends to decrease the MCL to between 2 and 20 {mu}g/L. The efficiency of arsenic removal in water treatment and the ambient levels of arsenic in source waters are both strongly influenced by the extent of arsenic adsorption to oxide surfaces. An investigation of ft factors controlling arsenic adsorption is crucial to evaluate properly the effectiveness of arsenic removal technologies such as enhanced coagulation. This study examined the effects of the following parameters on arsenic adsorption to preformed hydrous ferric oxide: arsenic oxidation state, initial arsenic concentration, pH and the presence of sulfate. The studies were carried out over initial arsenic concentrations between 2.5 and 100 {mu}g/L (0.33 and 1.34 {mu}M).

  20. ARSENIC EFFECTS ON TELOMERE AND TELOMERASE ACTIVITY

    EPA Science Inventory

    Arsenic effects on telomere and telomerase activity. T-C. Zhang, M. T. Schmitt, J. Mo, J. L. Mumford, National Research Council and U.S Environmental Protection Agency, NHEERL, Research Triangle Park, NC 27711
    Arsenic is a known carcinogen and also an anticancer agent for acut...

  1. ARSENIC DESORPTION FROM DRINKING WATER DISTRIBUTION SYSTEMS

    EPA Science Inventory

    The U.S. Environmental Protection Agency (USEPA) has recently lowered the maximum contaminant level (MCL) for arsenic from 0.050 mg/L to 0.010 mg/L for all community and non-community water sources. The new MCL for arsenic must be met by January 2006. Recent studies have found th...

  2. 78 FR 68056 - Information Collection Request Submitted to OMB for Review and Approval; Comment Request; EPA's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-13

    ... AGENCY Information Collection Request Submitted to OMB for Review and Approval; Comment Request; EPA's Design for the Environment (DfE) Logo Redesign Consultations AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The Environmental Protection Agency has submitted a new information...

  3. In situ chemical fixation of arsenic-contaminated soils: Anexperimental study

    SciTech Connect

    Yang, Li; Donahoe, Rona J.; Redwine, James C.

    2007-03-27

    This paper reports the results of an experimentalstudytesting a low-cost in situ chemical fixation method designed to reclaimarsenic-contaminated subsurface soils. Subsurface soils from severalindustrial sites in southeastern U.S. were contaminated with arsenicthrough heavy application of herbicide containing arsenic trioxide. Themean concentrations of environmentally available arsenic in soilscollected from the two study sites, FW and BH, are 325 mg/kg and 900mg/kg, respectively. The soils are sandy loams with varying mineralogicaland organic contents. The previous study [Yang L, Donahoe RJ. The form,distribution and mobility of arsenic in soils contaminated by arsenictrioxide, at sites in Southeast USA. Appl Geochem 2007;22:320 341]indicated that a large portion of the arsenic in both soils is associatedwith amorphous aluminum and iron oxyhydroxides and shows very slowrelease against leaching by synthetic precipitation. The soil's amorphousaluminum and iron oxyhydroxides content was found to have the mostsignificant effect on its ability to retain arsenic.Based on thisobservation, contaminated soils were reacted with different treatmentsolutions in an effort to promote the formation of insolublearsenic-bearing phases and thereby decrease the leachability of arsenic.Ferrous sulfate, potassium permanganate and calcium carbonate were usedas the reagents for the chemical fixation solutions evaluated in threesets of batch experiments: (1) FeSO4; (2) FeSO4 and KMnO4; (3) FeSO4,KMnO4 and CaCO3. The optimum treatment solutions for each soil wereidentified based on the mobility of arsenic during sequential leaching oftreated and untreated soils using the fluids described in EPA Method 1311[USEPA. Method 1311: toxicity characteristic leaching procedure. Testmethods for evaluating solid waste, physical/chemical methods. 3rd ed.Washington, DC: U.S. Environmental Protection Agency, Office of SolidWaste. U.S. Government Printing Office; 1992]toxic characteristicsleaching

  4. 78 FR 12054 - Information Collection Request Submitted to OMB for Review and Approval; Comment Request; EPA's...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-21

    ... Federal Register (77 FR 50495) on August 21, 2012 during a 60- day comment period. This notice allows for... ENERGY STAR Program in the Residential Sector (Renewal) AGENCY: Environmental Protection Agency (EPA... request (ICR), ``EPA's ENERGY STAR Program in the Residential Sector'' (EPA ICR No. 2193.03, OMB...

  5. Method of arsenic removal from water

    DOEpatents

    Gadgil, Ashok

    2010-10-26

    A method for low-cost arsenic removal from drinking water using chemically prepared bottom ash pre-treated with ferrous sulfate and then sodium hydroxide. Deposits on the surface of particles of bottom ash form of activated iron adsorbent with a high affinity for arsenic. In laboratory tests, a miniscule 5 grams of pre-treated bottom ash was sufficient to remove the arsenic from 2 liters of 2400 ppb (parts per billion) arsenic-laden water to a level below 50 ppb (the present United States Environmental Protection Agency limit). By increasing the amount of pre-treated bottom ash, even lower levels of post-treatment arsenic are expected. It is further expected that this invention supplies a very low-cost solution to arsenic poisoning for large population segments.

  6. BIOREMEDIATION OF HAZARDOUS WASTE SITES: PRACTICAL APPROACHES TO IMPLEMENTATION (EPA/625/K-96/001)

    EPA Science Inventory

    This document contains abstracts and slide hardcopy for the U.S. Environmental Protection Agency's (EPA's) "Seminar Series on Bioremediation of Hazardous Waste Sites: Practical Approaches to Implementation." This technology transfer seminar series, sponsored by EPA's Biosystems ...

  7. A FRAMEWORK FOR THE USE OF GENOMICS DATA AT THE EPA

    EPA Science Inventory

    Four year ago, the US Environmental Protection Agency's (EPA) paper Potential Implications of Genomics for Regulatory and Risk Assessment Applications at EPA identified four areas of oversight likely to be influenced by genomics data. These were the prioritization of contaminant...

  8. 76 FR 11777 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-03

    ... (75 FR 61481), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received no comments... Request; EPA's ENERGY STAR Product Labeling (Renewal) AGENCY: Environmental Protection Agency (EPA... docket, go to http://www.regulations.gov . Title: EPA's ENERGY STAR Product Labeling (Renewal)...

  9. EPA`s plan for part 75 continuous emissions monitoring rule revisions

    SciTech Connect

    Macedonia, J.; Vollaro, R.; Culligan, K.; Sheppard, M.

    1997-12-31

    As a result of on-going internal and external assessment of the Acid Rain Program monitoring and reporting requirements, EPA, state environmental agencies, and utilities have identified areas of the Part 75 CEM regulations which would benefit from revision or clarification. Many of the suggested revisions will add increased flexibility to the utility industry in implementing and complying with the requirements of Part 75. Other revisions will clarify existing provisions in an effort to make the regulation more understandable. Still other revisions will provide increased quality assurance of the Acid Rain Program CEM data. The panel will present EPA`s current plans for a proposed rulemaking to incorporate the technical revisions to Part 75. The panel will briefly discuss EPA`s proposed revisions to some of the major issues and will respond to questions.

  10. Arsenic methylation phenotype affects accumulation and retention of arsenic in mice

    EPA Science Inventory

    Michael F. Hughes, Brenda C. Edwards, Karen M. Herbin-Davis, David J. Thomas, Pharmacokinetics Branch, ISTD, NHEERL, ORO, US EPA, Research Triangle Park, NC Enzymatically catalyzed methylation of arsenic (As) determines its systemic distribution and retention and its actions as a...

  11. 40 CFR 1033.255 - EPA decisions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....255 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR POLLUTION CONTROLS CONTROL OF EMISSIONS FROM LOCOMOTIVES Certifying Engine Families § 1033.255 EPA decisions. (a) If we... for certification if we determine that your engine family fails to comply with emission standards...

  12. NARSTO EPA SS PITTSBURGH RAPID SPMS DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS PITTSBURGH RAPID SPMS DATA Project Title:  NARSTO Discipline:  ... Parameters:  Particulates Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Pittsburgh, Pennsylvania SCAR-B ...

  13. NARSTO EPA SS HOUSTON DMA DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS HOUSTON DMA DATA Project Title:  NARSTO Discipline:  ... Particulates Cloud Condensation Nuclei Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Houston, Texas SCAR-B Block:  ...

  14. NARSTO EPA SS LOS ANGELES SMPS DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS LOS ANGELES SMPS DATA Project Title:  NARSTO Discipline:  ... Particle Properties Particulate Matter Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Los Angeles, California SCAR-B ...

  15. NARSTO EPA SS LOS ANGELES PARTISOL DATA

    Atmospheric Science Data Center

    2014-05-07

    NARSTO EPA SS LOS ANGELES PARTISOL DATA Project Title:  NARSTO Discipline:  ... Properties Trace Elements Trace Metals Order Data:  Reverb:  Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Los Angeles, California SCAR-B ...

  16. SPECIATE - EPA'S DATABASE OF SPECIATED EMISSION PROFILES

    EPA Science Inventory

    SPECIATE is the U.S. Environmental Protection Agency's (EPA) repository of total organic compound (TOC) and particulate matter (PM) speciation profiles for emissions from air pollution sources. The data base has recently been updated and an associated report has recently been re...

  17. 40 CFR 96.61 - EPA recordation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false EPA recordation. 96.61 Section 96.61 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS FOR STATE IMPLEMENTATION PLANS NOX...

  18. The EPA Children's Environmental Health Yearbook.

    ERIC Educational Resources Information Center

    Environmental Protection Agency, Washington, DC. Office of Children's Health Protection.

    Through their environments, children are exposed to a wide variety of substances that pose a risk to their health. This yearbook provides information to the public on the activities of the Environmental Protection Agency (EPA) to protect children from environmental hazards, including the latest information on the unique threats of environmental…

  19. EPA'S WASTE MANAGEMENT AND SOIL TREATMENT RESEARCH

    EPA Science Inventory

    The mission of the EPA is to protect human health and to safeguard the natural environment - air, water, and land - upon which life depends. In order to accomplish this mission, the Agency is organized into a series of regional and program offices. The ORD supports the various co...

  20. EPA wants to know your GHG emissions

    SciTech Connect

    2009-06-15

    The Environmental Protection Agency (EPA) issued a proposal in mid-March that mandates reporting of greenhouse gas (GHG) emissions from large sources in the U.S. including electricity-generating facilities. Anyone emitting more than 25,000 metric tons per year of GHGs to submit annual reports starting in 2011.

  1. EPA STAR Grants Contribution to the SOAS Campaign

    EPA Science Inventory

    This poster explains how EPA Science to Achieve Results (STAR) grantees contributed to the summer 2013 inter-agency Southeast Atmosphere Study (SAS), specifically the Southern Oxidant and Aerosol Study (SOAS). There is also a brief explanation of EPA scientist involvement in this...

  2. EPA's Report on the Environment (ROE) (2008 Final Report)

    EPA Science Inventory

    epa.gov/ncea/images/roe2008_cover.jpg" height = "266" width="200" vspace = "5" hspace="5" align="right" border="1" alt="Cover of the EPA's 2008 Report on the Environment">The Environmental Protection Agency's 2008 Report on the Environment, also referred to ...

  3. 40 CFR 307.23 - EPA's review of preauthorization applications.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...; (6) The cost and effectiveness of the proposed response actions when compared with other alternatives... applications. 307.23 Section 307.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED...; Preauthorization § 307.23 EPA's review of preauthorization applications. (a) EPA shall review each...

  4. 40 CFR 307.23 - EPA's review of preauthorization applications.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...; (6) The cost and effectiveness of the proposed response actions when compared with other alternatives... applications. 307.23 Section 307.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED...; Preauthorization § 307.23 EPA's review of preauthorization applications. (a) EPA shall review each...

  5. 40 CFR 307.23 - EPA's review of preauthorization applications.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...; (6) The cost and effectiveness of the proposed response actions when compared with other alternatives... applications. 307.23 Section 307.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED...; Preauthorization § 307.23 EPA's review of preauthorization applications. (a) EPA shall review each...

  6. 40 CFR 17.4 - Applicability to EPA proceedings.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Applicability to EPA proceedings. 17.4 Section 17.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS General Provisions § 17.4 Applicability to...

  7. 40 CFR 17.4 - Applicability to EPA proceedings.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Applicability to EPA proceedings. 17.4 Section 17.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS General Provisions § 17.4 Applicability to...

  8. 40 CFR 17.4 - Applicability to EPA proceedings.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Applicability to EPA proceedings. 17.4 Section 17.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS General Provisions § 17.4 Applicability to...

  9. 40 CFR 17.4 - Applicability to EPA proceedings.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Applicability to EPA proceedings. 17.4 Section 17.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS General Provisions § 17.4 Applicability to...

  10. 40 CFR 17.4 - Applicability to EPA proceedings.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Applicability to EPA proceedings. 17.4 Section 17.4 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS General Provisions § 17.4 Applicability to...

  11. 40 CFR 310.21 - How does EPA resolve disputes?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 27 2010-07-01 2010-07-01 false How does EPA resolve disputes? 310.21 Section 310.21 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions How to Get Reimbursed § 310.21 How does EPA resolve disputes?...

  12. Career paths through the U.S. EPA

    EPA Science Inventory

    In a recent survey of employee satisfaction, the U.S. EPA was ranked 6th of the 30 large federal agencies that were surveyed (http://data.bestplacestowork.org). I have been working as a post doc at the EPA since receiving my Ph.D. in ecological physiology from the University of ...

  13. 4. Contextual view of EPA Farm showing radwaste tank, facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Contextual view of EPA Farm showing rad-waste tank, facing south-southeast. - Nevada Test Site, Environmental Protection Agency Farm, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  14. 6. Contextual view of EPA Farm showing cattle shelter, facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Contextual view of EPA Farm showing cattle shelter, facing southeast. - Nevada Test Site, Environmental Protection Agency Farm, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  15. 2. Contextual view of EPA Farm showing milliongallon reservoir, facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Contextual view of EPA Farm showing million-gallon reservoir, facing east-southeast. - Nevada Test Site, Environmental Protection Agency Farm, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  16. 5. Contextual view of EPA Farm showing holding pens, facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Contextual view of EPA Farm showing holding pens, facing west-southwest. - Nevada Test Site, Environmental Protection Agency Farm, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  17. SCIENCE CAREERS AT EPA: AN EXCITING OPPORTUNITY TO SERVE

    EPA Science Inventory

    The Environmental Protection Agency has 30 years of history protecting the environment and human health. The scientists at EPA have different backgrounds and experiences that contribute to the creativity of research and development of risk assessment techniques. An overview o...

  18. THE NOAA - EPA NATIONAL AIR QUALITY FORECASTING SYSTEM

    EPA Science Inventory

    Building upon decades of collaboration in air pollution meteorology research, in 2003 the National Oceanic and Atmospheric Administration (NOAA) and the United States Environmental Protection Agency (EPA) signed formal partnership agreements to develop and implement an operationa...

  19. Current Status of EPA Protocol Gas Verification Program

    EPA Science Inventory

    Accurate compressed gas reference standards are needed to calibrate and audit continuous emission monitors (CEMs) and ambient air quality monitors that are being used for regulatory purposes. US Environmental Protection Agency (EPA) established its traceability protocol to ensur...

  20. NARSTO EPA SS HOUSTON TEXAQS2000 PM25 ORG DATA

    Atmospheric Science Data Center

    2014-04-25

    ... Station Instrument:  GC-MS-Gas Chromatograph/Mass Spectrometry Location:  Houston, Texas Spatial ... Readme Files:  EPA Sites Get Google Earth Related Data:  Environmental Protection Agency ...

  1. Understanding the USDA and EPA structure for SBIR Funding

    EPA Science Inventory

    Presentation is part of SBA webinar series on all of the different SBIR agencies. With USDA, this presentation will describe funding opportunities with EPA's SBIR Program. Audience will be small businesses interested in support for their environmental technologies.

  2. View of EPA Farm storage shed, facing north. Greenhouse is ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm storage shed, facing north. Greenhouse is in background - Nevada Test Site, Environmental Protection Agency Farm, Storage Shed, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  3. 1. View of EPA Farm Lab Building 1506, facing south ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. View of EPA Farm Lab Building 15-06, facing south - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  4. View of EPA Farm cattle shelter (featuring horse trailer), facing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm cattle shelter (featuring horse trailer), facing northwest - Nevada Test Site, Environmental Protection Agency Farm, Shelter Unit Type, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  5. Closeup view of EPA Farm cattle shelter lamp, facing west ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Close-up view of EPA Farm cattle shelter lamp, facing west - Nevada Test Site, Environmental Protection Agency Farm, Shelter Unit Type, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  6. View of EPA Farm cattle shelters (Building 1506 in background), ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm cattle shelters (Building 15-06 in background), facing southeast - Nevada Test Site, Environmental Protection Agency Farm, Shelter Unit Type, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  7. View of EPA Farm power substation, facing westsouthwest Nevada ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm power substation, facing west-southwest - Nevada Test Site, Environmental Protection Agency Farm, Power Substation, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  8. 6. View of interior, EPA Farm Lab Building 1506 milking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. View of interior, EPA Farm Lab Building 15-06 milking area, facing northwest - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  9. View of EPA Farm Sioux silo, facing east. Radsafe trailer ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm Sioux silo, facing east. Rad-safe trailer is to the left - Nevada Test Site, Environmental Protection Agency Farm, Silo Type, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  10. 7. View of interior, EPA Farm Lab Building 1506 milk ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. View of interior, EPA Farm Lab Building 15-06 milk room, facing west - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  11. View of EPA Farm quonset huts, facing southsouthwest Nevada ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm quonset huts, facing south-southwest - Nevada Test Site, Environmental Protection Agency Farm, Quonset Hut Type, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  12. View of EPA Farm metal weather tower, facing east, showing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of EPA Farm metal weather tower, facing east, showing thirty-acre irrigated field - Nevada Test Site, Environmental Protection Agency Farm, Weather Tower, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  13. Regulatory decision with EPA/NRC/DOE/State Session (Panel)

    SciTech Connect

    O`Donnell, E.

    1995-12-31

    This panel will cover the Nuclear Regulatory Commission`s (NRC) proposed radiation limits in the Branch Technical Position on Low-Level Radioactive Waste Performance Assessment and the Environmental Protection Agency`s (EPA) draft regulation in Part 193. Representatives from NRC and EPA will discuss the inconsistencies in these two regulations. DOE and state representatives will discuss their perspective on how these regulations will affect low-level radioactive waste performance assessments.

  14. Dietary reference intakes for DHA and EPA.

    PubMed

    Kris-Etherton, Penny M; Grieger, Jessica A; Etherton, Terry D

    2009-01-01

    Various organizations worldwide have made dietary recommendations for eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and fish intake that are primarily for coronary disease risk reduction and triglyceride (TG) lowering. Recommendations also have been made for DHA intake for pregnant women, infants, and vegetarians/vegans. A Dietary Reference Intake (DRI), specifically, an Adequate Intake (AI), has been set for alpha-linolenic acid (ALA) by the Institute of Medicine (IOM) of The National Academies. This amount is based on an intake that supports normal growth and neural development and results in no nutrient deficiency. Although there is no DRI for EPA and DHA, the National Academies have recommended that approximately 10% of the Acceptable Macronutrient Distribution Range (AMDR) for ALA can be consumed as EPA and/or DHA. This recommendation represents current mean intake for EPA and DHA in the United States ( approximately 100mg/day), which is much lower than what many groups worldwide are currently recommending. Global recommendations for long-chain omega-3 fatty acids underscore the pressing need to establish DRIs for DHA and EPA because DRIs are recognized as the "official" standard by which federal agencies issue dietary guidance or policy directives for the health and well-being of individuals in the United States and Canada. Because of the many health benefits of DHA and EPA, it is important and timely that the National Academies establish DRIs for the individual long-chain (20 carbons or greater) omega-3 fatty acids.

  15. EVALUATION OF A MATRIX INTERFERENCE IN GROUND WATER ARSENIC MEASUREMENT BY ICP-OES

    EPA Science Inventory

    Arsenic enters ground water systems by either the weathering of naturally occurring subsurface materials or human activities such as mining and pesticide manufacturing. The current EPA drinking water limit for arsenic is set at 50 ug/L, with the reduction to 10 ug/L in 2006. The...

  16. Arsenic in North Carolina: public health implications.

    PubMed

    Sanders, Alison P; Messier, Kyle P; Shehee, Mina; Rudo, Kenneth; Serre, Marc L; Fry, Rebecca C

    2012-01-01

    Arsenic is a known human carcinogen and relevant environmental contaminant in drinking water systems. We set out to comprehensively examine statewide arsenic trends and identify areas of public health concern. Specifically, arsenic trends in North Carolina private wells were evaluated over an eleven-year period using the North Carolina Department of Health and Human Services database for private domestic well waters. We geocoded over 63,000 domestic well measurements by applying a novel geocoding algorithm and error validation scheme. Arsenic measurements and geographical coordinates for database entries were mapped using Geographic Information System techniques. Furthermore, we employed a Bayesian Maximum Entropy (BME) geostatistical framework, which accounts for geocoding error to better estimate arsenic values across the state and identify trends for unmonitored locations. Of the approximately 63,000 monitored wells, 7712 showed detectable arsenic concentrations that ranged between 1 and 806μg/L. Additionally, 1436 well samples exceeded the EPA drinking water standard. We reveal counties of concern and demonstrate a historical pattern of elevated arsenic in some counties, particularly those located along the Carolina terrane (Carolina slate belt). We analyzed these data in the context of populations using private well water and identify counties for targeted monitoring, such as Stanly and Union Counties. By spatiotemporally mapping these data, our BME estimate revealed arsenic trends at unmonitored locations within counties and better predicted well concentrations when compared to the classical kriging method. This study reveals relevant information on the location of arsenic-contaminated private domestic wells in North Carolina and indicates potential areas at increased risk for adverse health outcomes.

  17. EPA`s clean air power initiative

    SciTech Connect

    Critchfield, L.R.

    1997-12-31

    The Clean Air Power Initiative (CAPI) is a multi-stakeholder project intended to improve air pollution control efforts involving the power generating industry. This paper documents the progress made in the first year of the initiative, which included a number of meetings with interested stakeholders and development and analysis of alternative approaches for more efficient and effective pollution control. The project`s goal is to develop an integrated regulatory strategy or three major pollutants emitted from electric power generators; namely, sulfur dioxide, nitrogen oxides, and, potentially, mercury. Major reductions in these pollutants are expected to be needed to reduce the detrimental health effects of ground-level ozone, fine particles, and hazardous air pollutants and reduce the environmental effects of acidification, eutrophication, ecosystem, crop, and materials damage, and regional haze. The Clean Air Power Initiative has considered, where feasible, new approaches to pollution control that recognize the long-range transport of many air pollutants and the economic benefits of emissions trading. The project was initiated by EPA`s Assistant Administrator for Air and Radiation in 1995. As individual companies develop and implement strategies to participate in more competitive power markets, they could benefit from greater certainty in being able to plan for and reduce costs of future environmental regulations. The EPA is interested in reinventing its regulatory approach to reduce the number, administrative complexity, and cost of its requirements while improving the likelihood of achieving environmental results.

  18. Arsenic contamination awareness among the rural residents in Bangladesh.

    PubMed

    Paul, Bimal Kanti

    2004-10-01

    Arsenic poisoning of tubewell water, which constitutes the primary source of drinking water, has become the greatest health threat to the people of rural Bangladesh. Somewhere between 35 to 57 million people in the country are now suspected of being affected by drinking water contaminated with arsenic. While the Bangladesh government, non-government organizations (NGOs), and bilateral and multilateral assistance agencies are involved in combating this dreadful problem, all of their efforts to date have proceeded without having grassroots information about arsenic poisoning. The objectives of this study are to investigate the level of knowledge rural residents have regarding arsenic poisoning and to identify the correlates of that knowledge. Questionnaire surveys administered among residents of four rural areas in Bangladesh provided the major data source for this study. Twenty villages were selected from moderate and low arsenic risk regions and a total of 356 respondents, 177 from medium risk regions and 179 from low risk regions, were interviewed. Analysis of the survey data reveals that arsenic awareness is currently not widespread in the study villages, particularly in the low arsenic risk region. There are also gaps in arsenic knowledge regarding the diseases caused by arsenic poisoning and mitigating measures available to prevent contamination. This study identified arsenic risk region, level of education, gender, and age as important determinants of arsenic knowledge. The findings of this study will aid in making existing health education programs more effective and in reducing the risk of developing arsenic-related illnesses.

  19. EPA Remote Sensing Information Gateway

    NASA Astrophysics Data System (ADS)

    Paulsen, H. K.; Szykman, J. J.; Plessel, T.; Freeman, M.; Dimmick, F.

    2009-12-01

    The Remote Sensing Information Gateway was developed by the U.S. Environmental Protection Agency (EPA) to assist researchers in easily obtaining and combining a variety of environmental datasets related to air quality research. Current datasets available include, but are not limited to surface PM2.5 and O3 data, satellite derived aerosol optical depth , and 3-dimensional output from U.S. EPA's Models 3/Community Multi-scale Air Quality (CMAQ) modeling system. The presentation will include a demonstration that illustrates several scenarios of how researchers use the tool to help them visualize and obtain data for their work; with a particular focus on episode analysis related to biomass burning impacts on air quality. The presentation will provide an overview on how RSIG works and how the code has been—and can be—adapted for other projects. One example is the Virtual Estuary, which focuses on automating the retrieval and pre-processing of a variety of data needed for estuarine research. RSIG’s source codes are freely available to researchers with permission from the EPA principal investigator, Dr. Jim Szykman. RSIG is available to the community and can be accessed online at http://www.epa.gov/rsig. Once the JAVA policy file is configured on your computer you can run the RSIG applet on your computer and connect to the RSIG server to visualize and retrieve available data sets. The applet allows the user to specify the temporal/spatial areas of interest, and the types of data to retrieve. The applet then communicates with RSIG subsetter codes located on the data owners’ remote servers; the subsetter codes assemble and transfer via ordinary Internet protocols only the specified data to the researcher’s computer. This is much faster than the usual method of transferring large files via FTP and greatly reduces network traffic. The RSIG applet then visualizes the transferred data on a latitude-longitude map, automatically locating the data in the correct

  20. EPA QUICK REFERENCE GUIDES

    EPA Science Inventory

    EPA Quick Reference Guides are compilations of information on chemical and biological terrorist agents. The information is presented in consistent format and includes agent characteristics, release scenarios, health and safety data, real-time field detection, effect levels, samp...

  1. EPA Permeable Surface Research

    EPA Science Inventory

    EPA recognizes permeable surfaces as an effective post-construction infiltration-based Best Management Practice to mitigate the adverse effects of stormwater runoff. The professional user community conceptually embraces permeable surfaces as a tool for making runoff more closely...

  2. Occurrence and distribution of arsenic and radon in water from private wells in the Rancocas aquifer, southern New Castle and northern Kent Counties, Delaware, 2015

    USGS Publications Warehouse

    Denver, Judith M.

    2016-10-12

    Water samples were collected and analyzed for arsenic and radon from 36 private, mostly domestic wells that tap the Rancocas aquifer in southern New Castle and northern Kent Counties, Delaware, during the summer of 2015. Both arsenic and radon are from natural mineral sources, in particular glauconitic and other marine-derived sediments, which are important components of the geologic formations comprising the Rancocas aquifer. Routine testing of domestic wells is not required in Delaware; as a result, many homeowners are not aware of potential water-quality problems with these chemicals in their well water. Arsenic has previously been detected at levels of potential concern for human health in this aquifer in adjacent parts of Maryland where it is referred to as the Aquia aquifer. Arsenic and radon also have previously been detected in several Rancocas aquifer wells in Delaware. The Delaware Department of Natural Resources and Environmental Control intends to use the data from this project to better identify areas with potential for levels of concern for domestic well owners. This report includes chemical results and maps showing the distribution of sampled wells and concentrations of arsenic and radon. All data collected for this study also are available in the U.S. Geological Survey’s National Water Information System database.Arsenic was detected above the minimum reporting limit of 0.1 micrograms per liter (µg/L) in 34 of the 36 wells sampled with concentrations ranging from about 0.11 to 27 µg/L. In 15 of the samples, arsenic concentrations were at or above the U.S. Environmental Protection Agency (EPA) Maximum Contaminant Level (MCL) of 10 µg/L for public wells. Most of the higher concentrations are clustered along a band running from the southwest to northeast in the southern part of the study area.Radon, which is an inert gas derived from radium, was detected in all water samples with concentrations ranging from 85 to 1,870 picocuries per liter (p

  3. Unsaturated zone arsenic distribution and implications for groundwater contamination.

    PubMed

    Reedy, Robert C; Scanlon, Bridget R; Nicot, Jean-Philippe; Tachovsky, J Andrew

    2007-10-15

    Arsenic compounds have been applied at the land surface as pesticides in agricultural areas globally. The purpose of this study was to evaluate the fate of anthropogenic arsenic applications related to agriculture, using arsenic applications on cotton in the southern High Plains (SHP), Texas, as a case study and examining possible linkages with contamination of the underlying Ogallala aquifer in this region, where 36% of wells exceed the new EPA 10 microg/L standard. Unsaturated zone soil samples were collected from boreholes beneath natural ecosystems (grassland/ shrubland) to provide a control (no arsenic application) (5 profiles) and cotton cropland (20 profiles) for analyses of water-extractable arsenic, vanadium, phosphate, chloride, and nitrate. Natural ecosystem profiles have high arsenic concentrations at depth (maximum of 7.2-69.6 microg As/ kg dry soil at 5.9-21.4 m depth) that are attributed to a geologic source. Most profiles beneath cotton cropland have high arsenic concentrations within the upper meter (profile means 1.7 to 31.6 microg/kg) that correlate with phosphate (r = 0.70, p < 0.01) and are attributed to anthropogenic arsenic application associated with phosphate fertilizer application. High arsenic concentrations at >1 m depth (profile means < or =36.3 microg/kg) found in cropland profiles are attributed to a geologic source because of similarity with profiles beneath natural ecosystems, lack of correlation with phosphate, and pore-water ages that predate anthropogenic arsenic application in many profiles. GIS analyses showed poor correlations between groundwater arsenic and percent cultivated land (r = -0.15, p < 0.01), groundwater nitrate (r = 0.30, p < 0.01), and water table depth (r= -0.31, p < 0.01), further supporting the idea that anthropogenic-derived arsenic in the shallow subsurface is not linked to groundwater arsenic contamination in this region.

  4. Electrostatic Plasma Accelerator (EPA)

    NASA Technical Reports Server (NTRS)

    Brophy, John R.; Aston, Graeme

    1989-01-01

    The Electrostatic Plasma Accelerator (EPA) is a thruster concept which promises specific impulse levels between low power arcjets and those of the ion engine while retaining the relative simplicity of the arcjet. The EPA thruster produces thrust through the electrostatic acceleration of a moderately dense plasma. No accelerating electrodes are used and the specific impulse is a direct function of the applied discharge voltage and the propellant atomic mass. The goal of the present program is to demonstrate feasibility of the EPA thruster concept through experimental and theoretical investigations of the EPA acceleration mechanism and discharge chamber performance. Experimental investigations will include operating the test bed ion (TBI) engine as an EPA thruster and parametrically varying the thruster geometry and operating conditions to quantify the electrostatic plasma acceleration effect. The theoretical investigations will include the development of a discharge chamber model which describes the relationships between the engine size, plasma properties, and overall performance. For the EPA thruster to be a viable propulsion concept, overall thruster efficiencies approaching 30% with specific impulses approaching 1000 s must be achieved.

  5. Mechanism of Arsenic Adsorption Using Wheat Biomass -- a spectroscopic study

    NASA Astrophysics Data System (ADS)

    Calvo, Oscar; Manciu, Felicia; Maldonado, Josefina; Gardea-Torresdey, Jorge

    2006-10-01

    Arsenic is a trace element that is toxic to animals, humans included. Since the current Environmental Protection Agency guidelines regarding water quality standards indicate that arsenic concentrations in excess of 50 ppb are hazardous to welfare of humans, the search for new water remediation methods or improvements of previous methods have been a focus in environmental technology. Investigations of arsenic uptake have used wide range of sorbents including iron oxides and oxyhydroxides, for which it have been proved that arsenic shows high affinity. In this study, we used far-infrared spectroscopy to examine the arsenic reduction using biomaterials. pH dependence analysis by FTIR demonstrates the sorption of iron oxides and oxyhydroxides by the wheat biomass. The splitting of 350 cm-1 amorphous iron oxide vibrations is a direct proof of the arsenic uptake. In addition, there is evidence of sorption of arsenic at sulfhydryl group of cysteine existent in wheat.

  6. 76 FR 71019 - Amendment of Inspector General's Operation and Reporting (IGOR) System Investigative Files (EPA-40)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ... AGENCY Amendment of Inspector General's Operation and Reporting (IGOR) System Investigative Files (EPA-40... General's Operation and Reporting (IGOR) System Investigative Files (EPA-40) to the Inspector General... The Inspector General's Operation and Reporting (IGOR) System Investigative Files (EPA-40) will...

  7. 40 CFR 300.520 - State involvement in EPA-lead enforcement negotiations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 27 2010-07-01 2010-07-01 false State involvement in EPA-lead enforcement negotiations. 300.520 Section 300.520 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... involvement in EPA-lead enforcement negotiations. (a) EPA shall notify states of response action...

  8. 40 CFR 300.520 - State involvement in EPA-lead enforcement negotiations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 29 2013-07-01 2013-07-01 false State involvement in EPA-lead enforcement negotiations. 300.520 Section 300.520 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... involvement in EPA-lead enforcement negotiations. (a) EPA shall notify states of response action...

  9. 40 CFR 300.520 - State involvement in EPA-lead enforcement negotiations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 28 2014-07-01 2014-07-01 false State involvement in EPA-lead enforcement negotiations. 300.520 Section 300.520 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... involvement in EPA-lead enforcement negotiations. (a) EPA shall notify states of response action...

  10. 40 CFR 300.520 - State involvement in EPA-lead enforcement negotiations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 28 2011-07-01 2011-07-01 false State involvement in EPA-lead enforcement negotiations. 300.520 Section 300.520 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... involvement in EPA-lead enforcement negotiations. (a) EPA shall notify states of response action...

  11. 40 CFR 300.520 - State involvement in EPA-lead enforcement negotiations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 29 2012-07-01 2012-07-01 false State involvement in EPA-lead enforcement negotiations. 300.520 Section 300.520 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... involvement in EPA-lead enforcement negotiations. (a) EPA shall notify states of response action...

  12. 40 CFR 35.4150 - What happens after my group submits its application to EPA?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false What happens after my group submits its application to EPA? 35.4150 Section 35.4150 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS... for A Tag § 35.4150 What happens after my group submits its application to EPA? (a) EPA will...

  13. 77 FR 427 - EPAAR Clause for Compliance With EPA Policies for Information Resources Management

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-05

    ... AGENCY 48 CFR Part 1552 EPAAR Clause for Compliance With EPA Policies for Information Resources... to update terminology and Web site links related to EPA policies for information resources management..., Compliance with EPA Policies for Information Resources Management. The proposed rule was published on May...

  14. Arsenic, inorganic

    Integrated Risk Information System (IRIS)

    Arsenic , inorganic ; CASRN 7440 - 38 - 2 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data , as outlined in the IRIS assessment development process . Sections I ( Health Hazard Assessments for Noncarcinoge

  15. 77 FR 37670 - Agency Information Collection Activities OMB Responses

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-22

    ... without change. EPA ICR Number 1811.07; NESHAP for Polyether Polyols Production; 40 CFR part 63 subparts A... change. EPA ICR Number 1081.10; NESHAP for Inorganic Arsenic Emissions from Glass Manufacturing Plants... Number 1964.05; NESHAP for Wet-Formed Fiberglass Mat Production; 40 CFR part 63 subparts A and HHHH;...

  16. Health implications of arsenic in drinking water

    SciTech Connect

    Pontius, F.W. ); Brown, K.G. ); Chen, C.J. . Inst. of Public Health)

    1994-09-01

    The adequacy of the current maximum contaminant level (MCL) for arsenic is being evaluated by the US Environmental Protection Agency. If recent theoretical estimates of chronic effects and cancer risks prove accurate, the current MCL may not effectively protect health. Knowledge of arsenic pharmacokinetics and mechanisms in humans, however, is not complete enough to provide a definitive answer, and current epidemiologic evidence is too inconsistent and too fraught with uncertainty regarding arsenic exposure to be helpful in assessing low-level risks. 85 refs.

  17. In search of an arsenic MCL

    SciTech Connect

    Not Available

    1994-09-01

    Questions about arsenic continue to fan the flames of debate that surround the US Environmental Protection Agency's quest for a new, more appropriate maximum contaminant level (MCL) for arsenic. In making its decision, the USEPA is taking into account many factors, including occurrence, exposure and health effects, and treatment technologies. Recent studies in Taiwan on long-term human exposure show that arsenic in drinking water is associated with liver, lung, kidney, and bladder cancers as well as previously documented skin cancer. However, studies of several US communities served by water supplies containing high concentrations of arsenic failed to show excessive skin disorders, and the arsenic-induced risk of internal cancer in the US is uncertain. In response to the question of whether the current arsenic MCL (0.05 mg/L) protects health, these authors conclude that existing epidemiologic data are too limited to provide a definitive answer. Once USEPA has selected MCL options for arsenic, it will use occurrence data to develop a regulatory impact analysis; from this analysis the costs and benefits of compliance with the various MCLs can be estimated. In reviewing past surveys of arsenic occurrence and ongoing investigations of low-level occurrence, the latter are particularly important because USEPA is considering an MCL below 5 [mu]g/L.

  18. Framework for decision making: An EPA perspective

    SciTech Connect

    Regli, S.; Cromwell, J.E.; Zhang, X.; Gelderloos, A.B.; Grubbs, W.D.

    1992-08-01

    The United States Environmental Protection Agency (EPA) is developing national regulations to control for disinfectants and disinfection by-products (D/DBPs) in public drinking water supplies. EPA intends to propose regulations that will apply to all public water systems using disinfection and serving non-transient populations -- approximately 220 million people. This regulation would be unlike the current maximum contaminant level (MCL) for total trihalomethanes (TTHMs) which only pertains to systems serving more than 10,000 people. A fundamental goal in setting any new regulation is to be able to conclude with confidence that the resultant changes in treatment would lead to a significant overall decrease in risk to public health. This paper will describe the analysis that EPA is undertaking in pursuit of meeting this goal.

  19. After two decades, EPA`s hazardous waste regulations still rule

    SciTech Connect

    Wray, T.K.

    1996-11-01

    The Environmental Protection Agency (EPA) promulgated the first hazardous waste management regulations nearly 20 years ago under the Resource Conservation and Recovery Act. The rules were designed to ensure that hazardous wastes would be managed in an environmentally safe manner from cradle to grave--from the point of generation to final disposal. The regulations have undergone several revisions but still consist of four basic parts--waste identification, generator rules, transporter rules, and treatment, storage and disposal rules. This article focuses on rules for generators. EPA regulations define three classes of generators, based on waste volume and toxicity. All generators must obtain an EPA identification number, which requires completion and filing of form 8700-12 ``Notification of Hazardous Waste Activity.`` The alphanumeric identification numbers typically are issued by state environmental regulatory agencies.

  20. Quality of our groundwater resources: arsenic and fluoride

    USGS Publications Warehouse

    Nordstrom, D. Kirk

    2011-01-01

    Groundwater often contains arsenic or fluoride concentrations too high for drinking or cooking. These constituents, often naturally occurring, are not easy to remove. The right combination of natural or manmade conditions can lead to elevated arsenic or fluoride which includes continental source rocks, high alkalinity and pH, reducing conditions for arsenic, high phosphate, high temperature and high silica. Agencies responsible for safe drinking water should be aware of these conditions, be prepared to monitor, and treat if necessary.

  1. IRIS Toxicological Review of Inorganic Arsenic (Cancer) (2010 External Review Draft)

    EPA Science Inventory

    EPA's Science Advisory Board (SAB) conducted a review of the scientific basis supporting the human health cancer hazard and dose-response assessment of inorganic arsenic that will appear on the Integrated Risk Information System (IRIS) database. EPA revised the assessment and is...

  2. IRIS Toxicological Review for Inorganic Arsenic (Scoping and Problem Formulation Materials)

    EPA Science Inventory

    In November 2012, EPA released scoping and problem formulation materials for the IRIS assessment of inorganic arsenic for public comment and discussion. The scoping information was based on input from EPA's program and regional offices and was provided for informational purposes....

  3. EPA/ORD/RTP (Environmental Protection Agency, Office of Research and Development, Research Triangle Park) asbestos program support for the OTS (Office of Toxic Substances) asbestos-in-schools program. Final report

    SciTech Connect

    Beard, M.E.

    1986-03-01

    An overview of the EPA/ORD/RTP Asbestos program support for the OTS Asbestos-in-Schools Program is given. The program includes (1) a bulk sample asbestos analysis audit program, (2) an intercomparison of three measurement methods for airborne asbestos, (3) the development of audit materials for airborne asbestos measurement methods, and (4) the development of guidance for post-abatement asbestos air monitoring.

  4. EPA's monitoring program at Love Canal 1980.

    PubMed

    Hauser, T R; Bromberg, S M

    1982-09-01

    As stated at the beginning of this paper conclusions reached thus far cannot be discussed in this paper. However, a great deal of information is available for examination.EPA displayed its ability to coordinate widely separated laboratories, both Federal and private, into a smooth working team in a very short period of time. A very comprehensive study plan was also developed and implemented quickly. EPA was fortunate to have already had GCA under contract when the emergency arose. In no small part the success of the field effort was due to the managerial and technical abilities of the GCA team.Within a period of 6 weeks a plan was developed, a prime contractor retained, subcontractors hired, and field activities begun. Within a period of 3 months in excess of 8600 field samples were collected and over 12,000 field and QC samples were analyzed. During this same period 2 major data systems were developed, debugged, and placed into operation.In short this EPA project was probably the most comprehensive multimedia field project ever attempted by EPA and certainly the data is being subjected to the most strenuous quality control measures ever imposed by this Agency. The entire program is presently under peer review and the results are being prepared for publication by EPA Headquarters. PMID:24264296

  5. EPA`s integrated nitrogen oxides strategy

    SciTech Connect

    Grano, D.H.

    1997-12-31

    Nitrogen oxides (NO{sub x}) are highly reactive and play a major role in the formation of various gases and particles in the atmosphere which lead to harmful effects on human health and welfare. This paper briefly describes the multiple impacts on human health and welfare that result from emissions of NO{sub x} and describes EPA`s strategy to integrate NO{sub x} reductions from various mobile and stationary sources in a balanced manner to achieve environmental benefits. Based on modeling information, it is clear that substantial reductions in NO{sub x} emissions over large geographic areas are needed if many densely populated areas of the nation are to attain the national ambient air quality standard for ozone. In addition to attainment of the health standard for ozone, the reduction of NO{sub x} emissions will also likely improve the nation`s environment by reducing adverse impacts of acid deposition, eutrophication of waterbodies, global warming, nitrogen dioxide, particulate matter, stratospheric ozone depletion, toxics, and visibility.

  6. Evaluation of a new water treatment for point-of-use household applications to remove microorganisms and arsenic from drinking water.

    PubMed

    Souter, Philip F; Cruickshank, Graeme D; Tankerville, Melanie Z; Keswick, Bruce H; Ellis, Brian D; Langworthy, Don E; Metz, Kathy A; Appleby, Martin R; Hamilton, Nicola; Jones, Amanda L; Perry, John D

    2003-06-01

    Contamination of drinking water by microorganisms and arsenic represents a major human health hazard in many parts of the world. An estimated 3.4 million deaths a year are attributable to waterborne diseases. Arsenic poisoning from contaminated water sources is causing a major health emergency in some countries such as Bangladesh where 35 to 77 million people are at risk. The World Health Organization (WHO) has recently recognized point-of-use water treatment as an effective means of reducing illness in developing country households. A new point-of-use water treatment system that is based on flocculation, sedimentation and disinfection was evaluated for the removal of bacterial, viral and parasitic pathogens as well as arsenic from drinking water to estimate its potential for use in developing countries. Tests were conducted with United States Environmental Protection Agency (EPA)-model and field- sample waters from developing countries. Samples were seeded with known numbers of organisms, treated with the combined flocculation/disinfection product, and assayed for survivors using standard assay techniques appropriate for the organism. Results indicated that this treatment system reduced the levels from 10(8)/l to undetectable (<1) of 14 types of representative waterborne bacterial pathogens including Salmonella typhi and Vibrio cholerae. No Escherichia coli were detected post-treatment in 320 field water samples collected from five developing countries. In addition, the water treatment system reduced polio and rotavirus titres by greater than 4-log values. Cyrptosporidium parvum and Giardia lamblia inocula were reduced by greater than 3-log values following use of this water treatment system. Arsenic, added to laboratory test waters, was reduced by 99.8%, and naturally occurring arsenic in field samples from highly contaminated Bangladeshi wells was reduced by 99.5% to mean levels of 1.2 microg/l. This water treatment system has demonstrated the potential to

  7. 75 FR 44255 - EPA Office of External Affairs and Environmental Education Staff Office; Request for Nominations...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-28

    ... AGENCY EPA Office of External Affairs and Environmental Education Staff Office; Request for Nominations of Candidates for the National Environmental Education Advisory Council AGENCY: Environmental... of External Affairs and Environmental Education Staff Office is soliciting applications...

  8. 78 FR 14090 - EPA Office of External Affairs and Environmental Education; Request for Nominations of Candidates...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ... AGENCY EPA Office of External Affairs and Environmental Education; Request for Nominations of Candidates for the National Environmental Education Advisory Council (Sub-Committee) AGENCY: Environmental...) Office of External Affairs and Environmental Education Staff Office is soliciting applications,...

  9. 75 FR 67713 - Agency Information Collection Activities; Proposed Collection; Comment Request; National...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-03

    ... comments. E-mail: ow-docket@epa.gov . Mail: EPA Docket Center, Water Docket, Environmental Protection... Headquarters, Office of Water, Office of Wastewater Management, Mailcode 4203M, Environmental Protection Agency... at the Water Docket in the EPA Docket Center (EPA/DC), EPA West, Room 3334, 1301 Constitution...

  10. CHURCHILL COUNTY, NEVADA ARSENIC STUDY: WATER CONSUMPTION AND EXPOSURE BIOMARKERS

    EPA Science Inventory

    The US Environmental Protection Agency is required to reevaluate the Maximum Contaminant Level (MCL) for arsenic in 2006. To provide data for reducing uncertainties in assessing health risks associated with exposure to low levels (<200 g/l) of arsenic, a large scale biomarker st...

  11. 77 FR 10507 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NESHAP for Petroleum Refineries (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION...: NESHAP for Petroleum Refineries (Renewal). ICR Numbers: EPA ICR Numbers 1692.07, OMB Control Number...

  12. 76 FR 38150 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ... Request; Cross-Media Electronic Reporting Rule (Renewal) AGENCY: Environmental Protection Agency (EPA..., 2011. ADDRESSES: Submit your comments, referencing Docket ID No. EPA-HQ-OEI- 2011-0096, to (1) EPA... in 5 CFR 1320.12. On February 2, 2011 (76 FR 5802), EPA sought comments on this ICR pursuant to 5...

  13. 76 FR 80927 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-27

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Glass Manufacturing Plants (Renewal) AGENCY: Environmental Protection Agency (EPA... . Title: NESHAP for Glass Manufacturing Plants (Renewal). ICR Numbers: EPA ICR Number 1131.10, OMB...

  14. 77 FR 39702 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-05

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NESHAP for Municipal Solid Waste Landfills (Renewal) AGENCY: Environmental Protection Agency (EPA...: NESHAP for Municipal Solid Waste Landfills (Renewal). ICR Numbers: EPA ICR Number 1938.05, OMB...

  15. 75 FR 29753 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-27

    ... Graphic Arts Industry (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: In....12. On July 8, 2009 (74 FR 32581), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... . Title: NSPS for the Graphic Arts Industry (Renewal). ICR Numbers: EPA ICR Number 0657.10, OMB...

  16. 76 FR 76407 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-07

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Bulk Gasoline Terminals (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION... . Title: NSPS for Bulk Gasoline Terminals (Renewal). ICR Numbers: EPA ICR Number 0664.10, OMB...

  17. 77 FR 16833 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-22

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Hot Mix Asphalt Facilities (Renewal) AGENCY: Environmental Protection Agency (EPA...: NSPS for Hot Mix Asphalt Facilities (Renewal). ICR Numbers: EPA ICR Number 1127.10, OMB Control...

  18. 77 FR 4297 - Agency Information Collection Activities; Proposed Collection; Comment Request; Reporting Under...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-27

    ... EPA's Landfill Methane Outreach Program; EPA ICR No. 1849.06 AGENCY: Environmental Protection Agency... Landfill Methane Outreach Program. ICR Numbers: EPA ICR Number 1849.06, OMB Control Number 2060-0446. ICR... 40 CFR part 9. Abstract: The Landfill Methane Outreach Program (LMOP), created by EPA as part of...

  19. 77 FR 38626 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NESHAP for Benzene Waste Operations (Renewal) AGENCY: Environmental Protection Agency (EPA...: NESHAP for Benzene Waste Operations (Renewal). ICR Numbers: EPA ICR Number 1541.10, OMB Control...

  20. 75 FR 18830 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-13

    ....12. On July 30, 2009 (74 FR 38004), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Acid Plants AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: In compliance with... . Title: NSPS for Nitric Acid Plants (Renewal). ICR Numbers: EPA ICR Number 1056.10, OMB Control...

  1. 76 FR 76406 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-07

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Sulfuric Acid Plants (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION... . Title: NSPS for Sulfuric Acid Plants (Renewal). ICR Numbers: EPA ICR Number 1057.12, OMB Control...

  2. 77 FR 56200 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-12

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NESHAP for Hydrochloric Acid Production (Renewal) AGENCY: Environmental Protection Agency (EPA...: NESHAP for Hydrochloric Acid Production (Renewal). ICR Numbers: EPA ICR Number 2032.07, OMB...

  3. Inorganic arsenic: a need and an opportunity to improve risk assessment.

    PubMed

    Chappell, W R; Beck, B D; Brown, K G; Chaney, R; Cothern, R; Cothern, C R; Irgolic, K J; North, D W; Thornton, I; Tsongas, T A

    1997-10-01

    This paper presents views on the current status of (inorganic) arsenic risk assessment in the United States and recommends research needed to set standards for drinking water. The opinions are those of the Arsenic Task Force of the Society for Environmental Geochemistry and Health, which has met periodically since 1991 to study issues related to arsenic risk assessment and has held workshops and international conferences on arsenic. The topic of this paper is made timely by current scientific interest in exposure to and adverse health effects of arsenic in the United States and passage of the Safe Drinking Water Act Amendment of 1996, which has provisions for a research program on arsenic and a schedule mandating the EPA to revise the maximum contaminant level of arsenic in drinking water by the year 2001. Our central premise and recommendations are straightforward: the risk of adverse health effects associated with arsenic in drinking water is unknown for low arsenic concentrations found in the United States, such as at the current interim maximum contaminant level of 50 microg/l and below. Arsenic-related research should be directed at answering that question. New epidemiological studies are needed to provide data for reliable dose-response assessments of arsenic and for skin cancer, bladder cancer, or other endpoints to be used by the EPA for regulation. Further toxicological research, along with the observational data from epidemiology, is needed to determine if the dose-response relationship at low levels is more consistent with the current assumption of low-dose linearity or the existence of a practical threshold. Other recommendations include adding foodborne arsenic to the calculation of total arsenic intake, calculation of total arsenic intake, and encouraging cooperative research within the United States and between the United States and affected countries. PMID:9349827

  4. Inorganic arsenic: a need and an opportunity to improve risk assessment.

    PubMed Central

    Chappell, W R; Beck, B D; Brown, K G; Chaney, R; Cothern, R; Cothern, C R; Irgolic, K J; North, D W; Thornton, I; Tsongas, T A

    1997-01-01

    This paper presents views on the current status of (inorganic) arsenic risk assessment in the United States and recommends research needed to set standards for drinking water. The opinions are those of the Arsenic Task Force of the Society for Environmental Geochemistry and Health, which has met periodically since 1991 to study issues related to arsenic risk assessment and has held workshops and international conferences on arsenic.The topic of this paper is made timely by current scientific interest in exposure to and adverse health effects of arsenic in the United States and passage of the Safe Drinking Water Act Amendment of 1996, which has provisions for a research program on arsenic and a schedule mandating the EPA to revise the maximum contaminant level of arsenic in drinking water by the year 2001. Our central premise and recommendations are straightforward: the risk of adverse health effects associated with arsenic in drinking water is unknown for low arsenic concentrations found in the United States, such as at the current interim maximum contaminant level of 50 microg/l and below. Arsenic-related research should be directed at answering that question. New epidemiological studies are needed to provide data for reliable dose-response assessments of arsenic and for skin cancer, bladder cancer, or other endpoints to be used by the EPA for regulation. Further toxicological research, along with the observational data from epidemiology, is needed to determine if the dose-response relationship at low levels is more consistent with the current assumption of low-dose linearity or the existence of a practical threshold. Other recommendations include adding foodborne arsenic to the calculation of total arsenic intake, calculation of total arsenic intake, and encouraging cooperative research within the United States and between the United States and affected countries. Images p1060-a Figure 1. PMID:9349827

  5. 78 FR 11124 - EPA Responses to State and Tribal 2010 Sulfur Dioxide Designation Recommendations: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-15

    ...: Notice of Availability and Public Comment Period AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability and public comment period. SUMMARY: Notice is hereby given that the EPA has posted... public to review and provide input on its responses during the comment period specified in the...

  6. 75 FR 62738 - Revisions to EPA's Rule on Protections for Subjects in Human Research Involving Pesticides...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-13

    ... Involving Pesticides; Notification to the Secretary of Agriculture AGENCY: Environmental Protection Agency (EPA). ACTION: Notification to the Secretary of Agriculture. SUMMARY: This document notifies the public that the Administrator of EPA has forwarded to the Secretary of Agriculture a draft proposed rule...

  7. 77 FR 15101 - Results From Inert Ingredient Test Orders Issued Under EPA's Endocrine Disruptor Screening...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ... systems. Extensive background on the Agency's endocrine program is available at http://www.epa.gov/endo..., ``Endocrine Disruptor Screening Program; Policies and Procedures for Initial Screening,'' (74 FR 17560), http... AGENCY Results From Inert Ingredient Test Orders Issued Under EPA's Endocrine Disruptor Screening...

  8. 77 FR 52633 - Notice of a Public Meeting: Stakeholder Meeting Concerning EPA's Intent To Regulate Perchlorate...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-30

    ... To Regulate Perchlorate Levels in Drinking Water AGENCY: Environmental Protection Agency (EPA... Drinking Water Regulation for Perchlorate. DATES: The public meeting and webcast will be held on September... Web site: http://water.epa.gov/drink/contaminants/unregulated/perchlorate.cfm . For questions...

  9. The impact of EPA`s Dioxin Reassessment on waste-to-energy risk assessments

    SciTech Connect

    Chrostowski, P.C.; Foster, S.A.; Lape, J.F.

    1997-12-31

    Since the mid-1980s, the US Environmental Protection Agency (EPA) has been attempting to develop a comprehensive mathematical model to be used for regulatory risk assessment. One expression of this model was published by EPA in a 1994 draft Dioxin Reassessment document. The Dioxin Reassessment includes algorithms for performing site-specific risk assessments of combustion sources that differ from those considered to be state-of-the-art in the late 1980s. This paper presents the results of a study that was performed to investigate the impact of EPA`s Dioxin Reassessment on potential human health risks associated with a modern waste-to-energy (WTE) facility. The study evaluated risks associated with a WTE facility equipped with modern air pollution controls using EPA`s methods published in the Dioxin Reassessment and using methods that prevailed prior to the Reassessment`s publication. Although the facility complies with the maximum achievable control technology (MACT) rule for municipal solid waste combustors, the analysis showed that the methodologies presented in the 1994 Dioxin Reassessment produce risks that are up to several orders of magnitude higher than those predicted using earlier state-of-the-art techniques. The most significant risk factors were found to be: (1) the method used to predict wet deposition fluxes including the location of the wet deposition maximum impact point; (2) the surface water model construction and parameterization, and (3) the requirement to include pathways not currently present but rather only based on future land use.

  10. Arsenic exposure in multiple environmental media in children near a smelter.

    PubMed

    Morse, D L; Harrington, J M; Housworth, J; Landrigan, P J; Kelter, A

    1979-04-01

    A nationwide survey of heavy-metal exposure in children living near primary nonferrous metal smelters demonstrated high urine arsenic levels in children living near a copper smelter in Ajo, Arizona. Airborne smelter emissions and drinking water were the apparent sources of exposure. To determine whether increased arsenic absorption had produced adverse health effects, we conducted an evaluation of 132 Ajo children 5 to 18 years old and compared results with those of 47 children from a comparison town with low arsenic exposure. Environmental testing showed that Ajo's municipal water supply contained arsenic in concentrations of 0.09 mg/l (the EPA standard is 0.05 mg/l); arsenic concentrations in dust averaged 342.2 microgram/g. Urine arsenic levels in Ajo children correlated positively with amount of tap-water consumed (r = .32, p less than. 0002) and with distance of residence from the smelter (r = .20, p less than .02). Tap-water drinkers had significantly higher urine arsenic levels than bottled water drinkers (t = 4.21 p less than .001). Mean urine arsenic levels were significantly higher for children in Ajo (4.75 microgram/100 ml) than for children in the comparison town (1.17 microgram/100 ml). Hair arsenic levels correlated poorly with arsenic exposure. Despite the study population's chronic exposure to elevated environmental levels of arsenic, no clinical or hematologic abnormalities attributable to arsenic were found. PMID:466981

  11. Arsenic surveillance program

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Background information about arsenic is presented including forms, common sources, and clinical symptoms of arsenic exposure. The purpose of the Arsenic Surveillance Program and LeRC is outlined, and the specifics of the Medical Surveillance Program for Arsenic Exposure at LeRC are discussed.

  12. ACTIVATION OF AP-1 IN UROTSA CELLS BY METHYLATED ARSENICALS

    EPA Science Inventory

    ACTIVATION OF AP-1 IN UROTSA CELLS BY METHYLATED TRIVALENT ARSENICALS. Z Drobna1, I Jaspers2, D J Thomas3 and M Styblo1. 1Department of Pediatrics; 2Center for Environmental Medicine and Lung Biology, University of North Carolina at Chapel Hill, NC, USA; 3US EPA, RTP, NC, USA.

  13. Project Update: ZVI Used for Arsenic from Lead Smelting Facility

    EPA Science Inventory

    The U.S. EPA Office of Research and Development’s National Risk Management Research Laboratory (NRMRL) is conducting long-term monitoring of a granular iron permeable reactive barrier (PRB) for remediation of ground water contaminated with arsenic from a former lead smelting faci...

  14. INTERACTIVE WORKSHOP ON ARSENIC REMOVAL FROM DRINKING WATER

    EPA Science Inventory

    In 2005, EPA's Office of Water and Office of Research and Development collaborated to present eleven arsenic training events. The workshops provided in-depth treatment technology training to help those affected; state drinking water staff, design engineers, system owners and cert...

  15. ZERO-VALENT IRON PRB APPLICATION EXPANDS TO ARSENIC REMOVAL

    EPA Science Inventory

    The U.S. EPA Office of Research and Development’s National Risk Management Research Laboratory (NRMRL) and Region 8 have begun evaluating performance of a pilot-scale permeable reactive barrier (PRB) to treat arsenic-contaminated ground water at the ASARCO Superfund near Helena, ...

  16. ANTIOXIDANTS AMELIORATION OF ARSENICAL-INDUCED EFFECTS IN VIVO

    EPA Science Inventory

    Antioxidant amelioration of arsenical-induced effects in vivo. ES Hunter and EH Rogers. Reproductive Toxicology Division, NHEERL, US EPA, RTP, NC.

    Antioxidants have been reported to ameliorate the effects of many developmental toxicants. We tested the hypothesis that oxi...

  17. COLUMN TESTS ON ARSENIC REMEDIATION USING ZEROVALENT IRON

    EPA Science Inventory

    It is urgent to find cost-effective remediation technologies to deal with arsenic contamination of groundwater if the current EPA allowable maximum contamination level of 0.05 mg As per liter is lowered to 0.01 mg As per liter in drinking water. We performed three column tests ea...

  18. DEVELOPMENT OF ULTRATRACE LASER SPECTROMETRY TECHNIQUES FOR MEASUREMENTS OF ARSENIC

    EPA Science Inventory


    Development of Arsenic Speciation Techniques Based on High Performance Liquid Chromatography and Atomic Fluorescence Spectrometry

    J.B. Simeonsson, H.D. Beach and D.J. Thomas
    US EPA, Office of Research and Development, National Health and Environmental Effects Resear...

  19. Earth Abides Arsenic Biotransformations

    NASA Astrophysics Data System (ADS)

    Zhu, Yong-Guan; Yoshinaga, Masafumi; Zhao, Fang-Jie; Rosen, Barry P.

    2014-05-01

    Arsenic is the most prevalent environmental toxic element and causes health problems throughout the world. The toxicity, mobility, and fate of arsenic in the environment are largely determined by its speciation, and arsenic speciation changes are driven, at least to some extent, by biological processes. In this article, biotransformation of arsenic is reviewed from the perspective of the formation of Earth and the evolution of life, and the connection between arsenic geochemistry and biology is described. The article provides a comprehensive overview of molecular mechanisms of arsenic redox and methylation cycles as well as other arsenic biotransformations. It also discusses the implications of arsenic biotransformation in environmental remediation and food safety, with particular emphasis on groundwater arsenic contamination and arsenic accumulation in rice.

  20. Earth Abides Arsenic Biotransformations

    PubMed Central

    Zhu, Yong-Guan; Yoshinaga, Masafumi; Zhao, Fang-Jie; Rosen, Barry P.

    2015-01-01

    Arsenic is the most prevalent environmental toxic element and causes health problems throughout the world. The toxicity, mobility, and fate of arsenic in the environment are largely determined by its speciation, and arsenic speciation changes are driven, at least to some extent, by biological processes. In this article, biotransformation of arsenic is reviewed from the perspective of the formation of Earth and the evolution of life, and the connection between arsenic geochemistry and biology is described. The article provides a comprehensive overview of molecular mechanisms of arsenic redox and methylation cycles as well as other arsenic biotransformations. It also discusses the implications of arsenic biotransformation in environmental remediation and food safety, with particular emphasis on groundwater arsenic contamination and arsenic accumulation in rice. PMID:26778863

  1. Arsenical keratoses in Bangladesh--update and prevention strategies.

    PubMed

    Ruiz de Luzuriaga, Arlene M; Ahsan, Habibul; Shea, Christopher R

    2011-01-01

    Arsenic is considered a Class I human carcinogen by the International Agency for Research on Cancer because of its increased risk for skin cancer, as well as internal cancers, such as lung and bladder cancer. Arsenic contamination of drinking water in Bangladesh has been called the "largest mass poisoning of a population in history." This inorganic arsenic contamination is of natural origin, with arsenic thought to be released to the groundwater from the surrounding sediment. Arsenicosis and its risk factors and prevention and management are discussed in this article. PMID:21095527

  2. Arsenical keratoses in Bangladesh--update and prevention strategies.

    PubMed

    Ruiz de Luzuriaga, Arlene M; Ahsan, Habibul; Shea, Christopher R

    2011-01-01

    Arsenic is considered a Class I human carcinogen by the International Agency for Research on Cancer because of its increased risk for skin cancer, as well as internal cancers, such as lung and bladder cancer. Arsenic contamination of drinking water in Bangladesh has been called the "largest mass poisoning of a population in history." This inorganic arsenic contamination is of natural origin, with arsenic thought to be released to the groundwater from the surrounding sediment. Arsenicosis and its risk factors and prevention and management are discussed in this article.

  3. EPA's Green Roof Research

    EPA Science Inventory

    This is a presentation on the basics of green roof technology. The presentation highlights some of the recent ORD research projects on green roofs and provices insight for the end user as to the benefits for green roof technology. It provides links to currently available EPA re...

  4. EPA EMERGENCY PLANNING TOOLBOX

    EPA Science Inventory

    EPA's Office of Research and Development and Office of Water/Water Security Division have jointly developed a Response Protocol Toolbox (RPTB) to address the complex, multi-faceted challenges of a water utility's planning and response to intentional contamination of drinking wate...

  5. The EPA Liver Project

    EPA Science Inventory

    The v-Liver is part of a broader EPA effort on Virtual Tissues (VT) aimed at reducing the magnitude and spectrum of animal testing by integrative in silico and in vitro models, which recapitulate the properties of intact organs. The other VT projects include the Virtual Embryo (...

  6. Groundwater arsenic contamination in Bangladesh-21 Years of research.

    PubMed

    Chakraborti, Dipankar; Rahman, Mohammad Mahmudur; Mukherjee, Amitava; Alauddin, Mohammad; Hassan, Manzurul; Dutta, Rathindra Nath; Pati, Shymapada; Mukherjee, Subhash Chandra; Roy, Shibtosh; Quamruzzman, Quazi; Rahman, Mahmuder; Morshed, Salim; Islam, Tanzima; Sorif, Shaharir; Selim, Md; Islam, Md Razaul; Hossain, Md Monower

    2015-01-01

    Department of Public Health Engineering (DPHE), Bangladesh first identified their groundwater arsenic contamination in 1993. But before the international arsenic conference in Dhaka in February 1998, the problem was not widely accepted. Even in the international arsenic conference in West-Bengal, India in February, 1995, representatives of international agencies in Bangladesh and Bangladesh government attended the conference but they denied the groundwater arsenic contamination in Bangladesh. School of Environmental Studies (SOES), Jadavpur University, Kolkata, India first identified arsenic patient in Bangladesh in 1992 and informed WHO, UNICEF of Bangladesh and Govt. of Bangladesh from April 1994 to August 1995. British Geological Survey (BGS) dug hand tube-wells in Bangladesh in 1980s and early 1990s but they did not test the water for arsenic. Again BGS came back to Bangladesh in 1992 to assess the quality of the water of the tube-wells they installed but they still did not test for arsenic when groundwater arsenic contamination and its health effects in West Bengal in Bengal delta was already published in WHO Bulletin in 1988. From December 1996, SOES in collaboration with Dhaka Community Hospital (DCH), Bangladesh started analyzing hand tube-wells for arsenic from all 64 districts in four geomorphologic regions of Bangladesh. So far over 54,000 tube-well water samples had been analyzed by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS). From SOES water analysis data at present we could assess status of arsenic groundwater contamination in four geo-morphological regions of Bangladesh and location of possible arsenic safe groundwater. SOES and DCH also made some preliminary work with their medical team to identify patients suffering from arsenic related diseases. SOES further analyzed few thousands biological samples (hair, nail, urine and skin scales) and foodstuffs for arsenic to know arsenic body burden and people sub

  7. Groundwater arsenic contamination in Bangladesh-21 Years of research.

    PubMed

    Chakraborti, Dipankar; Rahman, Mohammad Mahmudur; Mukherjee, Amitava; Alauddin, Mohammad; Hassan, Manzurul; Dutta, Rathindra Nath; Pati, Shymapada; Mukherjee, Subhash Chandra; Roy, Shibtosh; Quamruzzman, Quazi; Rahman, Mahmuder; Morshed, Salim; Islam, Tanzima; Sorif, Shaharir; Selim, Md; Islam, Md Razaul; Hossain, Md Monower

    2015-01-01

    Department of Public Health Engineering (DPHE), Bangladesh first identified their groundwater arsenic contamination in 1993. But before the international arsenic conference in Dhaka in February 1998, the problem was not widely accepted. Even in the international arsenic conference in West-Bengal, India in February, 1995, representatives of international agencies in Bangladesh and Bangladesh government attended the conference but they denied the groundwater arsenic contamination in Bangladesh. School of Environmental Studies (SOES), Jadavpur University, Kolkata, India first identified arsenic patient in Bangladesh in 1992 and informed WHO, UNICEF of Bangladesh and Govt. of Bangladesh from April 1994 to August 1995. British Geological Survey (BGS) dug hand tube-wells in Bangladesh in 1980s and early 1990s but they did not test the water for arsenic. Again BGS came back to Bangladesh in 1992 to assess the quality of the water of the tube-wells they installed but they still did not test for arsenic when groundwater arsenic contamination and its health effects in West Bengal in Bengal delta was already published in WHO Bulletin in 1988. From December 1996, SOES in collaboration with Dhaka Community Hospital (DCH), Bangladesh started analyzing hand tube-wells for arsenic from all 64 districts in four geomorphologic regions of Bangladesh. So far over 54,000 tube-well water samples had been analyzed by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS). From SOES water analysis data at present we could assess status of arsenic groundwater contamination in four geo-morphological regions of Bangladesh and location of possible arsenic safe groundwater. SOES and DCH also made some preliminary work with their medical team to identify patients suffering from arsenic related diseases. SOES further analyzed few thousands biological samples (hair, nail, urine and skin scales) and foodstuffs for arsenic to know arsenic body burden and people sub

  8. 75 FR 71123 - Agency Information Collection Activities; Proposed Collection; Comment Request; Safer Detergent...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-22

    ... AGENCY Agency Information Collection Activities; Proposed Collection; Comment Request; Safer Detergent... ICR, entitled: ``Safer Detergent Stewardship Initiative (SDSI) Program'' and identified by EPA ICR No... surfactants. Title: Safer Detergent Stewardship Initiative (SDSI) Program. ICR numbers: EPA ICR No....

  9. 75 FR 64724 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-20

    ... . Title: Performance Evaluation Studies on Wastewater Laboratories (Renewal). ICR numbers: EPA ICR No... Information Collection Activities; Submission to OMB for Review and Approval; Comment Request; Performance Evaluation Studies on Wastewater Laboratories (Renewal) AGENCY: Environmental Protection Agency (EPA)....

  10. 76 FR 62400 - Agency Information Collection Activities; Proposed Collection; Comment Request; Focus Groups as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-07

    ... Used by EPA for Economics Projects (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION..., Director, National Center for Environmental Economics. BILLING CODE 6560-50-P ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL...

  11. Workshop overview: Arsenic research and risk assessment

    SciTech Connect

    Sams, Reeder Wolf, Douglas C.; Ramasamy, Santhini; Ohanian, Ed; Chen, Jonathan; Lowit, Anna

    2007-08-01

    The chronic exposure of humans through consumption of high levels of inorganic arsenic (iAs)-contaminated drinking water is associated with skin lesions, peripheral vascular disease, hypertension, and cancers. Additionally, humans are exposed to organic arsenicals when used as pesticides and herbicides (e.g., monomethylarsonic acid, dimethylarsinic acid (DMA{sup V}) also known as cacodylic acid). Extensive research has been conducted to characterize the adverse health effects that result from exposure to iAs and its metabolites to describe the biological pathway(s) that lead to adverse health effects. To further this effort, on May 31, 2006, the United States Environmental Protection Agency (USEPA) sponsored a meeting entitled 'Workshop on Arsenic Research and Risk Assessment'. The invited participants from government agencies, academia, independent research organizations and consultants were asked to present their current research. The overall focus of these research efforts has been to determine the potential human health risks due to environmental exposures to arsenicals. Pursuant in these efforts is the elucidation of a mode of action for arsenicals. This paper provides a brief overview of the workshop goals, regulatory context for arsenical research, mode of action (MOA) analysis in human health risk assessment, and the application of MOA analysis for iAs and DMA{sup V}. Subsequent papers within this issue will present the research discussed at the workshop, ensuing discussions, and conclusions of the workshop.

  12. Pathways of arsenic uptake and efflux.

    PubMed

    Yang, Hung-Chi; Fu, Hsueh-Liang; Lin, Yung-Feng; Rosen, Barry P

    2012-01-01

    Arsenic is the most prevalent environmental toxic substance and ranks first on the U.S. Environmental Protection Agency's Superfund List. Arsenic is a carcinogen and a causative agent of numerous human diseases. Paradoxically arsenic is used as a chemotherapeutic agent for treatment of acute promyelocytic leukemia. Inorganic arsenic has two biological important oxidation states: As(V) (arsenate) and As(III) (arsenite). Arsenic uptake is adventitious because the arsenate and arsenite are chemically similar to required nutrients. Arsenate resembles phosphate and is a competitive inhibitor of many phosphate-utilizing enzymes. Arsenate is taken up by phosphate transport systems. In contrast, at physiological pH, the form of arsenite is As(OH)(3), which resembles organic molecules such as glycerol. Consequently, arsenite is taken into cells by aquaglyceroporin channels. Arsenic efflux systems are found in nearly every organism and evolved to rid cells of this toxic metalloid. These efflux systems include members of the multidrug resistance protein family and the bacterial exchangers Acr3 and ArsB. ArsB can also be a subunit of the ArsAB As(III)-translocating ATPase, an ATP-driven efflux pump. The ArsD metallochaperone binds cytosolic As(III) and transfers it to the ArsA subunit of the efflux pump. Knowledge of the pathways and transporters for arsenic uptake and efflux is essential for understanding its toxicity and carcinogenicity and for rational design of cancer chemotherapeutic drugs.

  13. 75 FR 63177 - Availability of FY 09 Grantee Performance Evaluation Reports for the Eight States of EPA Region 4...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... AGENCY Availability of FY 09 Grantee Performance Evaluation Reports for the Eight States of EPA Region 4...; Clean Air Act Section 105 grantee performance evaluation reports. SUMMARY: EPA's grant regulations (40 CFR 35.115) require the Agency to evaluate the performance of agencies which receive grants....

  14. 75 FR 63177 - Notice of a Public Meeting: Stakeholder Meeting Concerning EPA's Long-Term Revisions to the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... potential long-term revisions to EPA's regulations for the control of lead and copper in drinking water... Regulation of Lead and Copper in Drinking Water AGENCY: Environmental Protection Agency (EPA). ACTION: Notice... potential revisions to the LCR under consideration by the Agency. Discussion topics may include but are...

  15. 77 FR 15753 - Request for Nominations of Experts for a Science Advisory Board Panel To Review EPA's Web-Based...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ... Report on the Environment AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA... panel to review the Agency's Web-based Report on the Environment. DATES: Nominations should be submitted... Web-based Report on the Environment (ROE) has been developed to provide a comprehensive online...

  16. Field technology evaluations in EPA`s Environmental Technology Verification (ETC) Program

    SciTech Connect

    Dindal, A.; Bayne, C.; Jenkins, R.; Carden, D.; Bottrell, D.; Billets, S.

    1998-01-01

    The performance evaluation of innovative environmental technologies is an integral part of the US Environmental Protection Agency`s (EPA) mission. The Environmental Technology Verification (ETV) Program was created by the Agency to facilitate the deployment of innovative technologies through performance verification and information dissemination. The goal of the ETV Program is to further environmental protection by substantially accelerating the acceptance and use of improved and cost-effective technologies by providing independent and credible assessments of environmental technologies. This report will overview ORNL`s verification activities, including evaluation of polychlorinated biphenyl field analytical techniques, decision support software, and field extraction technologies.

  17. FY06 ORD PILOT STUDY: DETERMINE BIOAVAILABILITY AND BIOACCESSIBILITY OF ARSENIC IN SOIL AND DEVELOP ARSENIC SPECIATION METHODS

    EPA Science Inventory

    The product is a presentation requested by the organizers of the 2005 US EPA Bioavailability Technical Review Workgroup. It presents an overview, approaches (in-vivo & in-vitro), and logistics of the ORD pilot study on bioavailability of arsenic in soil. The overall project was ...

  18. THE CELLUAR METABOLISM OF ARSENIC

    EPA Science Inventory

    Because the methylation of arsenic produces intermediates and terminal products that exceed inorganic arsenic in potency as enzyme inhibitors, cytotoxins, and genotoxins, the methylation of arsenic is properly regarded as an activation process. The methylation of arsenic is an e...

  19. Ecotoxicology of arsenic in the marine environment

    SciTech Connect

    Neff, J.M.

    1997-05-01

    Arsenic has a complex marine biogeochemistry that has important implications for its toxicity to marine organisms and their consumers. The average concentration of total arsenic in the ocean is about 1.7 {micro}g/L, about two orders of magnitude higher than the US Environmental Protection Agency`s human health criterion value of 0.0175 {micro}g/L. The dominant form of arsenic in oxygenated marine and brackish waters in arsenate (As V). The more toxic and potentially carcinogenic arsenite (As III) rarely accounts for more than 20% of total arsenic in seawater. Uncontaminated marine sediments contain from 5 to about 40 {micro}g/g dry weight total arsenic. Arsenate dominates in oxidized sediments and is associated primarily with iron oxyhydroxides. In reducing marine sediments, arsenate is reduced to arsenite and is associated primarily with sulfide minerals. Marine algae accumulate arsenate from seawater, reduce it to arsenite, and then oxidize the arsenite to a large number of organoarsenic compounds. The algae release arsenite, methylarsonic acid, and dimethylarsinic acid to seawater. Dissolved arsenite and arsenate are more toxic to marine phytoplankton than to marine invertebrates and fish. This may be due to the fact that marine animals have a limited ability to bioconcentrate inorganic arsenic from seawater but can bioaccumulate organoarsenic compounds from their food. Tissues of marine invertebrates and fish contain high concentrations of arsenic, usually in the range of about 1 to 100 {micro}g/g dry weight, most of it in the form of organoarsenic compounds, particularly arsenobetaine. Organoarsenic compounds are bioaccumulated by human consumers of seafood products, but the arsenic is excreted rapidly, mostly as organoarsenic compounds. Arsenobetaine, the most abundant organoarsenic compound in seafoods, is not toxic or carcinogenic to mammals. Little of the organoarsenic accumulated by humans from seafood is converted to toxic inorganic arsenite.

  20. Chem I Supplement: Arsenic and Old Myths.

    ERIC Educational Resources Information Center

    Sarquis, Mickey

    1979-01-01

    Describes the history of arsenic, the properties of arsenic, production and uses of arsenicals, arsenic in the environment; toxic levels of arsenic, arsenic in the human body, and the Marsh Test. (BT)

  1. EPA's neurotoxicity risk assessment guidelines.

    PubMed

    Boyes, W K; Dourson, M L; Patterson, J; Tilson, H A; Sette, W F; MacPhail, R C; Li, A A; O'Donoghue, J L

    1997-12-01

    The proposed Neurotoxicity Risk Assessment Guidelines (U.S. EPA, 1995c Fed. Reg. 60(192), 52032-52056) of the U.S. Environmental Protection Agency (EPA) were the subject of a workshop at the 1997 Meeting of the Society of Toxicology. The workshop considered the role of guidelines in the risk assessment process, the primary features, scientific basis, and implications of the guidelines for EPA program offices, as well as for industrial neurotoxicologists from the perspectives of both pesticides and toxic substances regulation. The U.S. National Academy of Sciences (NAS, 1983, Risk Assessment in the Federal Government: Managing the Process) established a framework for distinguishing risk management from risk assessment, the latter being the result of integrating hazard identification, hazard characterization, and exposure assessment data. The guidelines are intended to establish operating principles that will be used when examining data in a risk assessment context. The proposed neurotoxicity risk assessment guidelines provide a conceptual framework for deciding whether or not a chemically induced effect can be considered to be evidence of neurotoxicity. Topics in the proposed guidelines include structural and functional effects, dose-response and -duration considerations, and relationships between effects. Among the issues that must be considered are the multiplicity of chemical effects, the levels of biological organization in the nervous system, and the tests, measurements, and protocols used. Judgment of the adversity of an effect depends heavily on the amount and types of data available. The attribution of a chemically induced effect to an action on the nervous system depends on several factors such as the quality of the study, the nature of the outcome, dose-response and time-response relationships, and the possible involvement of nonneural factors. The guidelines will also serve as a reference for those conducting neurotoxicity testing, as well as establish a

  2. EPA/IFP (Environmental Protection Agency/Institute Francais Du Petrole) European workshop on the emission of nitrous oxide from fossil-fuel combustion: Rueil-Malmaison, France, June 1-2, 1988

    SciTech Connect

    Ryan, J.V.; Srivastava, R.K.

    1989-10-01

    This report summarizes the proceedings of an EPA/Institut Francais du Petrole (IFP) cosponsored workshop addressing direct nitrous oxide (N2O) emission from fossil-fuel combustion. The third in a series, it was held at the IFP in Rueil-Malmaison, France, on June 1-2, 1988. Increasing atmospheric N2O concentrations have been linked to depletion of stratospheric ozone (O3) and to global-climate warming. The combustion of fossil fuels has been identified as a potential major anthropogenic source of N2O. The workshop had two goals: (1) to exchange information among various international research and industrial groups that are involved in N2O chemistry, modeling, and measurement; and (2) to develop a network for coordinating future related efforts.

  3. Court date for EPA acid rain rule

    SciTech Connect

    Lobsenz, G.

    1994-03-04

    In an acid rain rulemaking that appears headed straight for the courtroom, the Environmental Protection Agency this week announced new limits on emissions of nitrogen oxides from coal-fired power plants. The regulations, announced March 1, are expected to achieve a 1.8 million ton per year reduction in power plant NOx emissions, which are considered a major contributor to acid rain. The agency issued companion regulations last year to cut power plant discharges of sulfur dioxide, the other major acid rain pollutant. The NOx rulemaking elicited contradictory responses from utility industry officials. One point of contention involves the agency's definition of low-NOx burner technology, a key regulatory determination. If a utility installs EPA-defined low-NOx burner technology and still cannot meet the new NOx limits, it can apply for a less stringent [open quotes]alternative emission limit.[close quotes] The other issue likely to be raised by industry officials involves the January 1995 compliance deadline for utilities included in Phase I of the NOx program. While EPA will allow individual utilities to seek a deadline extension until April 1996 in the event of operational difficulties, the agency rejected the industry's request for an across-the-board extension.

  4. In-situ arsenic removal during groundwater recharge through unsaturated alluvium

    USGS Publications Warehouse

    O'Leary, David; Izbicki, John; T.J. Kim,; Clark Ajawani,; Suarez, Donald; Barnes, Thomas; Thomas Kulp,; Burgess, Matthew K.; Tseng, Iwen

    2015-01-01

    OBJECTIVES The purpose of this study was to determine the feasibility and sustainability of in-situ removal of arsenic from water infiltrated through unsaturated alluvium. BACKGROUND Arsenic is naturally present in aquifers throughout the southwestern United States and elsewhere. In January 2006, the U.S. Environmental Protection Agency (EPA) lowered the Maximum Contaminant Level (MCL) for arsenic from 50 to 10 micrograms per liter (g/L). This raised concerns about naturally-occurring arsenic in groundwater. Although commercially available systems using sorbent iron or aluminum oxide resins are available to treat high-arsenic water, these systems are expensive to build and operate, and may generate hazardous waste. Iron and aluminum oxides occur naturally on the surfaces of mineral grains that compose alluvial aquifers. In areas where alluvial deposits are unsaturated, these oxides may sorb arsenic in the same manner as commercial resins, potentially providing an effective low-cost alternative to commercially engineered treatment systems. APPROACH The Antelope Valley within the Mojave Desert of southern California contains a shallow water-table aquifer with arsenic concentrations of 5 g/L, and a deeper aquifer with arsenic concentrations of 30 g/L. Water was pumped from the deep aquifer into a pond and infiltrated through an 80 m-thick unsaturated zone as part of field-scale and laboratory experiments to treat high-arsenic groundwater and recharge the shallow water table aquifer at the site. The field-scale recharge experiment included the following steps: 1) construction of a recharge pond 2) test drilling for sample collection and instrument installation adjacent to the pond 3) monitoring downward migration of water infiltrated from the pond 4) monitoring changes in selected trace-element concentrations as water infiltrated through the unsaturated zone Data from instruments within the borehole adjacent to the pond were supplemented with borehole and

  5. EPA sets agenda for final days

    SciTech Connect

    Begley, R.

    1992-12-02

    Before the Clinton Administration takes over, the Environmental Protection Agency has some unfinished business it wants to wrap up. The agenda for the last weeks of the Bush Administration includes completing work on proposed rules on reformulated gasoline, accelerated phaseout of ozone-depleting substances, field tests of biotechnology-derived pesticides, and safer alternatives to currently used pesticides. In a mid-November memo, EPA administrator William K. Reilly told his staff, We have 71 days left until the inauguration. Let's use them as vigorously and productively as possible. In focusing the agenda, he says, we should close on those policies and Institutional reforms that are near completion, and take actions required to meet statutory and judicial deadlines and to prepare the agency to respond to challenges it will face all too soon. Those areas include a pending decision by the Supreme Court on whether to hear an appeal of a lower court's ruling against EPA's de minimis interpretation of the Delaney clause barring cancer-causing pesticide residues from processed foods. If the lower court's decision is upheld, EPA will be required to change its residue tolerances. Other targets include a rule on Resource Conservation and Recovery Act corrective action management units and a list of acceptable and unacceptable substitutes for chlorofluorocarbons and halons.

  6. US EPA Digital Science: An Evolution

    NASA Astrophysics Data System (ADS)

    Ziegler, C. R.; Burch, K.; Laniak, G.; Vega, A.; Harten, P.; Kremer, J.; Brookes, A.; Yuen, A.; Subramanian, B.

    2015-12-01

    The United States Environmental Protection Agency's (US EPA) digital science "enterprise" plays a critical role in US EPA's efforts to achieve its mission to protect human health and the environment. This enterprise is an evolving cross-disciplinary research and development construct, with social and institutional dimensions. It has an active development community and produces a portfolio of digital science products including decision support tools, data repositories, Web interfaces, and more. Earth sciences and sustainable development organizations from around the world - including US government agencies - have achieved various levels of success in taking advantage of the rapidly-evolving digital age. Efficiency, transparency and ability to innovate are tied to an organization's digital maturity and related social characteristics. Concepts like participatory web, data and software interoperability, global technology transfer, ontological harmonization, big data, scaling, re-use and open science are no longer "new and emerging." They have emerged and - in some cases - are tied to US government directives. We assess maturity, describe future scenarios, discuss new initiatives and outline steps for better leveraging the information age to more effectively and efficiently achieve US EPA's mission. The views expressed herein are those of the authors and do not necessarily reflect the views or policies of the organizations for which they work and/or represent.

  7. The ecology of arsenic.

    PubMed

    Oremland, Ronald S; Stolz, John F

    2003-05-01

    Arsenic is a metalloid whose name conjures up images of murder. Nonetheless, certain prokaryotes use arsenic oxyanions for energy generation, either by oxidizing arsenite or by respiring arsenate. These microbes are phylogenetically diverse and occur in a wide range of habitats. Arsenic cycling may take place in the absence of oxygen and can contribute to organic matter oxidation. In aquifers, these microbial reactions may mobilize arsenic from the solid to the aqueous phase, resulting in contaminated drinking water. Here we review what is known about arsenic-metabolizing bacteria and their potential impact on speciation and mobilization of arsenic in nature.

  8. Analysis of EPA`s cost-effectiveness study for the coastal oil and gas effluent limitations guidelines

    SciTech Connect

    Veil, J.

    1995-05-01

    The US Environmental Protection Agency (EPA) conducted a cost-effectiveness (CE) analysis to estimate the incremental cost of complying with the proposed effluent limitation guidelines (ELGs) for the coastal oil and gas industry (EPA 1995a). EPA`s CE analysis calculates the pounds of each pollutant that would be removed if the chosen discharge option is selected. In 1993, EPA issued final ELGs for the offshore oil and gas industry and published an offshore CE analysis. The chemical characteristics of produced water from the offshore region are essentially the same as those of produced water from the coastal region. It was surprising, therefore, that EPA chose a much longer list of pollutants and generally stricter weighting factors for the coastal CE analysis. This report reviews the data, assumptions, and analyses used in EPA`s coastal CE analysis and identifies alternate data, assumptions, and analyses that could lead to significantly different cost-effectiveness conclusions. Two alternate lists of pollutants are proposed, along with recalculated weighting factors for several pollutants that contributed a large proportion of the total PEs removed--radium, benzo(a)pyrene, boron, and ammonia. By using different combinations of these variables, a range of revised estimates of CE is calculated.

  9. Behavior of arsenic in a rotary-kiln incinerator (journal version)

    SciTech Connect

    Thurnau, R.C.; Fourneir, D.

    1992-01-01

    A series of pilot scale incineration tests were performed at EPA's Incineration Research Facility (IRF) to evaluate the fate of arsenic when fed to a rotary kiln incinerator. In addition to parametric tests, an arsenic-containing soil from a Superfund site was also fed to the same incinerator. The operation of the incinerator and the resulting test conditions were similar. The data showed that arsenic when incinerated tends to partition to the bottom ash. However, as the temperature in the kiln rises, the amount of arsenic partitioning to the ash decreases. With regard to the Superfund soil, the TCLP values for arsenic went down as the oxygen level in the kiln increased. Afterburner temperature and chlorine concentration in the waste did not appear to have any effect on the partitioning of arsenic.

  10. 78 FR 56719 - Draft Guidance for Industry on Arsenic in Apple Juice: Action Level; Supporting Document for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-13

    ... HUMAN SERVICES Food and Drug Administration Draft Guidance for Industry on Arsenic in Apple Juice: Action Level; Supporting Document for Action Level for Arsenic in Apple Juice; A Quantitative Assessment of Inorganic Arsenic in Apple Juice; Extension of Comment Period AGENCY: Food and Drug...

  11. 78 FR 42086 - Draft Guidance for Industry on Arsenic in Apple Juice: Action Level; Supporting Document for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-15

    ... HUMAN SERVICES Food and Drug Administration Draft Guidance for Industry on Arsenic in Apple Juice: Action Level; Supporting Document for Action Level for Arsenic in Apple Juice; A Quantitative Assessment of Inorganic Arsenic in Apple Juice; Availability AGENCY: Food and Drug Administration, HHS....

  12. Greenhouse Gas Emissions from Educational Facilities and the EPA Greenhouse Gas Reporting Rule: Actions You Need to Take Now

    ERIC Educational Resources Information Center

    Wurmbrand, Mitchell M.; Klotz, Thomas C.

    2010-01-01

    On September 22, 2009, The United States Environmental Protection Agency (EPA) issued its final rule on greenhouse gas (GHG) emission reporting. The informational literature that EPA has published to support the rule clearly states that EPA believes the vast majority of smaller GHG-emitting facilities, such as educational facilities, will not be…

  13. 77 FR 2060 - Amendment of the System of Records for Records of Pesticide Applicators Certified Under EPA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-13

    ... Pesticide Programs, as described in 75 FR 49489 (August 13, 2010). This system of records, entitled... AGENCY Amendment of the System of Records for Records of Pesticide Applicators Certified Under EPA...'s (EPA) Office of Pesticide Programs, Field and External Affairs Division, is giving notice that...

  14. AIR POLLUTION MEASUREMENTS IN THE VICINITY OF THE WORLD TRADE CENTER - SUMMARY OF MEASUREMENTS CONDUCTED BY EPA-ORD

    EPA Science Inventory

    The U.S. Environmental Protection Agency's Office of Research and Development (EPA-ORD) was requested by EPA's Region 2 office in New York on 9/12/01 to assist with air quality monitoring in response to the collapse of the World Trade Center. Scientists at the U.S. EPA-ORD's Nati...

  15. THE DEVELOPMENT OF A QUALITY ASSURANCE PROJECT PLAN FOR THE U.S. EPA DIOXIN EXPOSURE INITIATIVE PROGRAM

    EPA Science Inventory

    All projects planned and implemented under the EPA Dioxin Exposure Initiative (DEI) are required to have completed Quality Assurance Project Plans (QAPPs) EPA Order 5360.1 A2 states, All work funded by the United States Environmental Protection Agency (EPA) that involves the ...

  16. Arsenic and cardiovascular disease.

    PubMed

    States, J Christopher; Srivastava, Sanjay; Chen, Yu; Barchowsky, Aaron

    2009-02-01

    Chronic arsenic exposure is a worldwide health problem. Although arsenic-induced cancer has been widely studied, comparatively little attention has been paid to arsenic-induced vascular disease. Epidemiological studies have shown that chronic arsenic exposure is associated with increased morbidity and mortality from cardiovascular disease. In addition, studies suggest that susceptibility to arsenic-induced vascular disease may be modified by nutritional factors in addition to genetic factors. Recently, animal models for arsenic-induced atherosclerosis and liver sinusoidal endothelial cell dysfunction have been developed. Initial studies in these models show that arsenic exposure accelerates and exacerbates atherosclerosis in apolipoprotein E-knockout mice. Microarray studies of liver mRNA and micro-RNA abundance in mice exposed in utero suggest that a permanent state of stress is induced by the arsenic exposure. Furthermore, the livers of the arsenic-exposed mice have activated pathways involved in immune responses suggesting a pro-hyperinflammatory state. Arsenic exposure of mice after weaning shows a clear dose-response in the extent of disease exacerbation. In addition, increased inflammation in arterial wall is evident. In response to arsenic-stimulated oxidative signaling, liver sinusoidal endothelium differentiates into a continuous endothelium that limits nutrient exchange and waste elimination. Data suggest that nicotinamide adenine dinucleotide phosphate oxidase-derived superoxide or its derivatives are essential second messengers in the signaling pathway for arsenic-stimulated vessel remodeling. The recent findings provide future directions for research into the cardiovascular effects of arsenic exposure.

  17. Arsenic and Cardiovascular Disease

    PubMed Central

    States, J. Christopher; Srivastava, Sanjay; Chen, Yu; Barchowsky, Aaron

    2009-01-01

    Chronic arsenic exposure is a worldwide health problem. Although arsenic-induced cancer has been widely studied, comparatively little attention has been paid to arsenic-induced vascular disease. Epidemiological studies have shown that chronic arsenic exposure is associated with increased morbidity and mortality from cardiovascular disease. In addition, studies suggest that susceptibility to arsenic-induced vascular disease may be modified by nutritional factors in addition to genetic factors. Recently, animal models for arsenic-induced atherosclerosis and liver sinusoidal endothelial cell dysfunction have been developed. Initial studies in these models show that arsenic exposure accelerates and exacerbates atherosclerosis in apolipoprotein E–knockout mice. Microarray studies of liver mRNA and micro-RNA abundance in mice exposed in utero suggest that a permanent state of stress is induced by the arsenic exposure. Furthermore, the livers of the arsenic-exposed mice have activated pathways involved in immune responses suggesting a pro-hyperinflammatory state. Arsenic exposure of mice after weaning shows a clear dose-response in the extent of disease exacerbation. In addition, increased inflammation in arterial wall is evident. In response to arsenic-stimulated oxidative signaling, liver sinusoidal endothelium differentiates into a continuous endothelium that limits nutrient exchange and waste elimination. Data suggest that nicotinamide adenine dinucleotide phosphate oxidase–derived superoxide or its derivatives are essential second messengers in the signaling pathway for arsenic-stimulated vessel remodeling. The recent findings provide future directions for research into the cardiovascular effects of arsenic exposure. PMID:19015167

  18. 10 CFR 501.14 - Notice to Environmental Protection Agency.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false Notice to Environmental Protection Agency. 501.14 Section... General Provisions § 501.14 Notice to Environmental Protection Agency. A copy of any proposed rule or... Administrator of the Environmental Protection Agency (EPA). The Administrator of EPA shall be given the...

  19. 10 CFR 501.14 - Notice to Environmental Protection Agency.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false Notice to Environmental Protection Agency. 501.14 Section... General Provisions § 501.14 Notice to Environmental Protection Agency. A copy of any proposed rule or... Administrator of the Environmental Protection Agency (EPA). The Administrator of EPA shall be given the...

  20. 10 CFR 501.14 - Notice to Environmental Protection Agency.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Notice to Environmental Protection Agency. 501.14 Section... General Provisions § 501.14 Notice to Environmental Protection Agency. A copy of any proposed rule or... Administrator of the Environmental Protection Agency (EPA). The Administrator of EPA shall be given the...

  1. 10 CFR 501.14 - Notice to Environmental Protection Agency.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false Notice to Environmental Protection Agency. 501.14 Section... General Provisions § 501.14 Notice to Environmental Protection Agency. A copy of any proposed rule or... Administrator of the Environmental Protection Agency (EPA). The Administrator of EPA shall be given the...

  2. 10 CFR 501.14 - Notice to Environmental Protection Agency.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 4 2012-01-01 2012-01-01 false Notice to Environmental Protection Agency. 501.14 Section... General Provisions § 501.14 Notice to Environmental Protection Agency. A copy of any proposed rule or... Administrator of the Environmental Protection Agency (EPA). The Administrator of EPA shall be given the...

  3. THE METABOLIC BASIS OF ARSENIC TOXICITY

    EPA Science Inventory

    The Metabolic Basis of Arsenic Toxicity

    David J. Thomas, Experimental Toxicology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC

    Methylati...

  4. EPA proposes new rules for injection wells

    NASA Astrophysics Data System (ADS)

    The U.S. Environmental Protection Agency (EPA) has proposed rule changes to strengthen regulations protecting underground sources of drinking water from underground injection of hazardous wastes. The action is authorized by the Resource Conservation and Recovery Act (RCRA) and the Safe Drinking Water Act. The proposed rules were published in Federal Register August 27, 1987.“This proposal assures that hazardous wastes will either be properly treated or placed in an area where they can't contaminate underground sources of drinking water,” said Lawrence J. Jensen, EPA Assistant Administrator for Water. “The regulations would prohibit the migration of untreated hazardous waste out of the injection zone.”

  5. Are EPA's proposed revisions to the PM standards appropriate?

    SciTech Connect

    Lucinda Minton Langworthy

    2006-06-15

    In 1997 then-US Environmental Protection Agency (EPA) Administrator Carol Browner adopted new National Ambient Air Quality Standards (NAAQS) for fine particulate matter (PM2.5). Browner recognized that 'there is uncertainty in the characterization of health effects attributable to exposure to ambient PM.' As a result, President Clinton promised to review the scientific basis for those standards prior to their implementation. Recently, before EPA has even promulgated rules concerning implementation of those standards, the agency proposed to revise those standards to make them significantly more stringent. Are the proposed revisions to the standards appropriate? The author argues. 41 refs.

  6. 76 FR 81488 - Agency Information Collection Activities; Proposed Collection; Comment Request; National...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-28

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Agency Information Collection Activities; Proposed Collection; Comment Request; National Pollutant Discharge Elimination System (NPDES) Program (Renewal) AGENCY: Environmental Protection Agency (EPA)....

  7. Arsenic: the forgotten poison?

    PubMed

    Barton, E N; Gilbert, D T; Raju, K; Morgan, O S

    1992-03-01

    Chronic arsenic poisoning is an uncommon cause of peripheral neuropathy in Jamaica. A patient with this disorder is described. The insidious nature of chronic arsenic poisoning, with its disabling complications, is emphasised.

  8. Toxic Substances Portal- Arsenic

    MedlinePlus

    ... industrial applications. Organic arsenic compounds are used as pesticides, primarily on cotton fields and orchards. top What ... as copper or lead smelting, wood treating, or pesticide application. top How can arsenic affect my health? ...

  9. Arsenic Trioxide Injection

    MedlinePlus

    Arsenic trioxide is used to treat acute promyelocytic leukemia (APL; a type of cancer in which there ... worsened following treatment with other types of chemotherapy. Arsenic trioxide is in a class of medications called ...

  10. Cryptic exposure to arsenic.

    PubMed

    Rossy, Kathleen M; Janusz, Christopher A; Schwartz, Robert A

    2005-01-01

    Arsenic is an odorless, colorless and tasteless element long linked with effects on the skin and viscera. Exposure to it may be cryptic. Although human intake can occur from four forms, elemental, inorganic (trivalent and pentavalent arsenic) and organic arsenic, the trivalent inorganic arsenicals constitute the major human hazard. Arsenic usually reaches the skin from occupational, therapeutic, or environmental exposure, although it still may be employed as a poison. Occupations involving new technologies are not exempt from arsenic exposure. Its acute and chronic effects are noteworthy. Treatment options exist for arsenic-induced pathology, but prevention of toxicity remains the main focus. Vitamin and mineral supplementation may play a role in the treatment of arsenic toxicity. PMID:16394429

  11. Cryptic exposure to arsenic.

    PubMed

    Rossy, Kathleen M; Janusz, Christopher A; Schwartz, Robert A

    2005-01-01

    Arsenic is an odorless, colorless and tasteless element long linked with effects on the skin and viscera. Exposure to it may be cryptic. Although human intake can occur from four forms, elemental, inorganic (trivalent and pentavalent arsenic) and organic arsenic, the trivalent inorganic arsenicals constitute the major human hazard. Arsenic usually reaches the skin from occupational, therapeutic, or environmental exposure, although it still may be employed as a poison. Occupations involving new technologies are not exempt from arsenic exposure. Its acute and chronic effects are noteworthy. Treatment options exist for arsenic-induced pathology, but prevention of toxicity remains the main focus. Vitamin and mineral supplementation may play a role in the treatment of arsenic toxicity.

  12. Sulfur-modified iron (SMI) process for arsenic removal

    SciTech Connect

    Reinsel, M.A.; Santina, P.F.

    1999-07-01

    Many waters associated with mining and mineral processing contain high concentrations of arsenic, and effluent typically must meet increasingly stringent human health standards. A new proprietary technology for arsenic removal has been developed by Peter F. Santina to cost-effectively meet these discharge limits. Hydrometrics, Inc., has performed, under contract to peter F. Santina, further lab tests to prove and test limits of the efficacy of the process. In the sulfur-modified iron (SMI) process, arsenic is removed by an iron-sulfur matrix. Arsenic concentrations blow 0.005 mg/L have been obtained using SMI in jar tests and column tests, and the iron/sulfur residue has passed the US EPA Toxicity Characteristic Leaching Procedure (TCLP) test. A 10-gpm federally-funded pilot test is underway to further develop this promising technology. the purpose of pilot testing is to identify specific design parameters and operational procedures which can be used for full-scale production application of the SMI process. Projected operating costs for SMI are lower than alternative arsenic removal technologies such as iron salt addition, reverse osmosis and activated alumina. Cost savings would increase proportionally with higher flow rates and higher arsenic concentrations. The SMI process is potentially very promising for simple, cost-effective treatment of mining and other industrial effluents, drinking water and other arsenic-containing waters.

  13. Arsenic in Ground-Water Resources of the United States

    USGS Publications Warehouse

    Welch, Alan H.; Watkins, Sharon A.; Helsel, Dennis R.; Focazio, Michael J.

    2000-01-01

    Arsenic is a naturally occurring element in rocks, soils, and the waters in contact with them. Recognized as a toxic element for centuries, arsenic today also is a human health concern because it can contribute to skin, bladder, and other cancers (National Research Council, 1999). Recently, the National Research Council (1999) recommended lowering the current maximum contaminant level (MCL) allowed for arsenic in drinking water of 50 ?g/L (micrograms per liter), citing risks for developing bladder and other cancers. The U.S. Environmental Protection Agency (USEPA) will propose a new, and likely lower, arsenic MCL during 2000 (U.S. Environmental Protection Agency, 2000). This fact sheet provides information on where and to what extent natural concentrations of arsenic in ground water exceed possible new standards. The U.S. Geological Survey (USGS) has collected and analyzed arsenic in potable (drinkable) water from 18,850 wells in 595 counties across the United States during the past two decades. These wells are used for irrigation, industrial purposes, and research, as well as for public and private water supply. Arsenic concentrations in samples from these wells are similar to those found in nearby public supplies (see Focazio and others, 1999). The large number of samples, broad geographic coverage, and consistency of methods produce a more accurate and detailed picture of arsenic concentrations than provided by any previous studies.

  14. EPA shareware available

    SciTech Connect

    Not Available

    1993-08-01

    This is a description of EPA shareware that is available. The shareware will run on a personal computer with a minimum 550K ram, hard drive and EGA monitor, some requires VGA monitor and additional memory. The topics of the software include septic waste disposal, community sewer system planning, drinking water regulations, design of private water systems, lead contamination, water conservation, landscape planning for water conservation, groundwater education, surface water education, wetlands education, soil erosion, site evaluation, pesticide storage, fertilizer storage, and pollution prevention.

  15. EPA dioxin study called flawed

    SciTech Connect

    Begley, R.

    1995-05-24

    EPA`s dioxin reassessment took a drubbing from industry scientists last week at a meeting of EPA`s science advisory board (SAB), which is charged with reviewing the reassessment`s scientific underpinnings. {open_quotes}The scientific evidence available today does not support EPA`s conclusions that adverse human health effects can be expected at or near background exposure levels,{close_quotes} says Thomas B. Starr, principal an Environ Corp. and chairman of its dioxin expert panel. He says EPA uses {open_quotes}many unproved assumptions and untested hypotheses{close_quotes} to back up its claim. SAB agrees, and has directed EPA to revise its report. Environ`s dioxin panel is supported by the American Forest and Paper Association. William Carroll, scientist with CMA`s Chlorine Chemistry Council, says EPA`s linking laboratory animal effects to humans at background exposures {open_quotes}is not justified by the science that`s out there.{close_quotes} He is concerned that the public may interpret hypothetical risks as real.

  16. Arsenic and atherosclerosis.

    PubMed

    Simeonova, Petia P; Luster, Michael I

    2004-08-01

    Epidemiological studies have demonstrated a correlation between environmental or occupational arsenic exposure and a risk of vascular diseases related to atherosclerosis. Studies summarized in this review suggest that arsenic induces endothelial dysfunction, including inflammatory and coagulating activity as well as impairs nitric oxide (NO) balance. This may provide the pathophysiological basis for atherogenic potential of arsenic. Consistent with these data, arsenic accelerates atherosclerosis in apolipoprotein E (ApoE) deficient mice, a model of human atherosclerosis.

  17. EVALUATION OF SOIL WASHING TECHNOLOGY: RESULTS OF BENCH SCALE EXPERIMENTS ON PETROLEUM FUELS CONTAMINATED SOILS - EPA/600/S2-91/023

    EPA Science Inventory

    The U.S. Environmental Protection Agency (EPA) through its Risk Reduction Engineering Laboratory's Release Control Branch has undertaken research and development efforts to address the problem of leaking underground storage tanks (USTs). Under this effort, EPA is currently eva...

  18. Sources of arsenic in streams tributary to Lake Crowley, California

    USGS Publications Warehouse

    Eccles, Lawrence A.

    1976-01-01

    Lake Crowley is the largest single source of water for the city of Los Angeles. More than 50 percent of the water entering the Los Angeles-Owens River aqueduct flows through Lake Crowley. Arsenic enters Lake Crowley primarily from hot springs in Long Valley. Sixty percent of the arsenic discharged to Lake Crowley is from hot springs in Hot Creek Gorge. The hot-spring water containing about 1,000 micrograms per liter of arsenic blends with the water flowing in the creek and is usually diluted to a concentration of about 200 micrograms per liter; additional dilution occurs downstream. About 75 percent of the arsenic in Hot Creek is discharged from only two springs. The remaining sources of arsenic in the gorge are poorly defined seepage and flow from numerous small springs. Other sources of arsenic in Long Valley are from either high volume and low-arsenic concentration springs, such as the springs at Hot Creek Fish Hatchery, or high-concentration and low-volume springs, such as those found in the vicinity of the Alkali lakes. These other sources individually are small in comparison with the source in Hot Creek Gorge. It is unlikely that arsenic from these sources could cause the arsenic concentration in Lake Crowley to exceed the Environmental Protection Agency 's recommended criterion (limit) for public water supply. (Woodard-USGS)

  19. ARSENIC SOURCES AND ASSESSMENT

    EPA Science Inventory

    Recent research has identified a number of potential and current links between environmental arsenic releases and the management of operational and abandoned landfills. Many landfills will receive an increasing arsenic load due to the disposal of arsenic-bearing solid residuals ...

  20. Arsenic in Food

    MedlinePlus

    ... inorganic forms. The FDA has been measuring total arsenic concentrations in foods, including rice and juices, through its Total Diet Study program ... readily take up much arsenic from the ground, rice is different because it takes ... has high levels of less toxic organic arsenic. Do organic foods ...

  1. The carcinogenicity of arsenic.

    PubMed Central

    Pershagen, G

    1981-01-01

    A carcinogenic role of inorganic arsenic has been suspected for nearly a century. Exposure to inorganic arsenic compounds occurs in some occupational groups, e.g., among smelter workers and workers engaged in the production and use of arsenic containing pesticides. Substantial exposure can also result from drinking water in certain areas and the use of some drugs. Tobacco and wine have had high As concentrations due to the use of arsenic containing pesticides. Inorganic arsenic compounds interfere with DNA repair mechanisms and an increased frequency of chromosomal aberrations have been observed among exposed workers and patients. Epidemiological data show that inorganic arsenic exposure can cause cancer of the lung and skin. The evidence of an etiologic role of arsenic for angiosarcoma of the liver is highly suggestive; however, the association between arsenic and cancer of other sites needs further investigation. No epidemiological data are available on exposure to organic arsenic compounds and cancer. Animal carcinogenicity studies involving exposure to various inorganic and organic arsenic compounds by different routes have been negative, with the possible exception of some preliminary data regarding lung cancer and leukemia. Some studies have indicated an increased mortality from lung cancer in populations living near point emission sources of arsenic into the air. The role of arsenic cannot be evaluated due to lack of exposure data. Epidemiological data suggest that the present WHO standard for drinking water (50 micrograms As/l.) provides only a small safety margin with regard to skin cancer. PMID:7023936

  2. Electrostatic Plasma Accelerator (EPA)

    NASA Technical Reports Server (NTRS)

    Brophy, John R.; Aston, Graeme

    1995-01-01

    The application of electric propulsion to communications satellites, however, has been limited to the use of hydrazine thrusters with electric heaters for thrust and specific impulse augmentation. These electrothermal thrusters operate at specific impulse levels of approximately 300 s with heater powers of about 500 W. Low power arcjets (1-3 kW) are currently being investigated as a way to increase specific impulse levels to approximately 500 s. Ion propulsion systems can easily produce specific impulses of 3000 s or greater, but have yet to be applied to communications satellites. The reasons most often given for not using ion propulsion systems are their high level of overall complexity, low thrust with long burn times, and the difficulty of integrating the propulsion system into existing commercial spacecraft busses. The Electrostatic Plasma Accelerator (EPA) is a thruster concept which promises specific impulse levels between low power arcjets and those of the ion engine while retaining the relative simplicity of the arcjet. The EPA thruster produces thrust through the electrostatic acceleration of a moderately dense plasma. No accelerating electrodes are used and the specific impulse is a direct function of the applied discharge voltage and the propellant atomic mass.

  3. Arsenic pollution sources.

    PubMed

    Garelick, Hemda; Jones, Huw; Dybowska, Agnieszka; Valsami-Jones, Eugenia

    2008-01-01

    Arsenic is a widely dispersed element in the Earth's crust and exists at an average concentration of approximately 5 mg/kg. There are many possible routes of human exposure to arsenic from both natural and anthropogenic sources. Arsenic occurs as a constituent in more than 200 minerals, although it primarily exists as arsenopyrite and as a constituent in several other sulfide minerals. The introduction of arsenic into drinking water can occur as a result of its natural geological presence in local bedrock. Arsenic-containing bedrock formations of this sort are known in Bangladesh, West Bengal (India), and regions of China, and many cases of endemic contamination by arsenic with serious consequences to human health are known from these areas. Significant natural contamination of surface waters and soil can arise when arsenic-rich geothermal fluids come into contact with surface waters. When humans are implicated in causing or exacerbating arsenic pollution, the cause can almost always be traced to mining or mining-related activities. Arsenic exists in many oxidation states, with arsenic (III) and (V) being the most common forms. Similar to many metalloids, the prevalence of particular species of arsenic depends greatly on the pH and redox conditions of the matrix in which it exists. Speciation is also important in determining the toxicity of arsenic. Arsenic minerals exist in the environment principally as sulfides, oxides, and phosphates. In igneous rocks, only those of volcanic origin are implicated in high aqueous arsenic concentrations. Sedimentary rocks tend not to bear high arsenic loads, and common matrices such as sands and sandstones contain lower concentrations owing to the dominance of quartz and feldspars. Groundwater contamination by arsenic arises from sources of arsenopyrite, base metal sulfides, realgar and orpiment, arsenic-rich pyrite, and iron oxyhydroxide. Mechanisms by which arsenic is released from minerals are varied and are accounted for by

  4. Arsenic pollution sources.

    PubMed

    Garelick, Hemda; Jones, Huw; Dybowska, Agnieszka; Valsami-Jones, Eugenia

    2008-01-01

    Arsenic is a widely dispersed element in the Earth's crust and exists at an average concentration of approximately 5 mg/kg. There are many possible routes of human exposure to arsenic from both natural and anthropogenic sources. Arsenic occurs as a constituent in more than 200 minerals, although it primarily exists as arsenopyrite and as a constituent in several other sulfide minerals. The introduction of arsenic into drinking water can occur as a result of its natural geological presence in local bedrock. Arsenic-containing bedrock formations of this sort are known in Bangladesh, West Bengal (India), and regions of China, and many cases of endemic contamination by arsenic with serious consequences to human health are known from these areas. Significant natural contamination of surface waters and soil can arise when arsenic-rich geothermal fluids come into contact with surface waters. When humans are implicated in causing or exacerbating arsenic pollution, the cause can almost always be traced to mining or mining-related activities. Arsenic exists in many oxidation states, with arsenic (III) and (V) being the most common forms. Similar to many metalloids, the prevalence of particular species of arsenic depends greatly on the pH and redox conditions of the matrix in which it exists. Speciation is also important in determining the toxicity of arsenic. Arsenic minerals exist in the environment principally as sulfides, oxides, and phosphates. In igneous rocks, only those of volcanic origin are implicated in high aqueous arsenic concentrations. Sedimentary rocks tend not to bear high arsenic loads, and common matrices such as sands and sandstones contain lower concentrations owing to the dominance of quartz and feldspars. Groundwater contamination by arsenic arises from sources of arsenopyrite, base metal sulfides, realgar and orpiment, arsenic-rich pyrite, and iron oxyhydroxide. Mechanisms by which arsenic is released from minerals are varied and are accounted for by

  5. An analysis of soil arsenic records of decision.

    PubMed

    Davis, A; Sherwin, D; Ditmars, R; Hoenke, K A

    2001-06-15

    In 1986 the US EPA created the National Priority List (NPL) that now comprises in excess of 2,000 sites nationwide, with arsenic the second most common inorganic constituent. A survey of 69 Records of Decision (RODs) written between 1985 and 1998 for which arsenic was a major driver found that 84% of cleanup goals were risk-driven and 16% were background-driven, with a wide range of soil-arsenic cleanup standards for 10(-6) residential risk goals (2-305 mg/kg). In comparison, the range of background-based cleanup goals was much narrower (8-21 mg/kg). ROD soil arsenic concentrations exhibit no statistically significanttemporal trend, but on a geographic basis, EPA Regions 6, 8, 9, and 10 had some of the higher decisions. The risk assessment process is important in defining cleanup goals; however routine use of site-specific variables (i.e., bioavailability, realistic tenure in both residential and occupational settings, natural attenuation of arsenic in groundwater, etc.) is necessary to ensure an accurate assessment of potential site risks and to preclude over-remediation that may result from the use of default risk variables.

  6. Emissions of air toxics from coal-fired boilers: Arsenic

    SciTech Connect

    Mendelsohn, M.H.; Huang, H.S.; Livengood, C.D.

    1994-08-01

    Concerns over emissions of hazardous air pollutants (air toxics) have emerged as a major environmental issue; the authority of the US Environmental Protection Agency to regulate such pollutants has been greatly expanded through passage of the Clean Air Act Amendments of 1990. Arsenic and arsenic compounds are of concern mainly because of their generally recognized toxicity. Arsenic is also regarded as one of the trace elements in coal subject to significant vaporization. This report summarizes and evaluates available published information on the arsenic content of coals mined in the United States, on arsenic emitted in coal combustion, and on the efficacy of various environmental control technologies for controlling airborne emissions. Bituminous and lignite coals have the highest mean arsenic concentrations, with subbituminous and anthracite coals having the lowest. However, all coal types show very significant variations in arsenic concentrations. Arsenic emissions from coal combustion are not well-characterized, particularly with regard to determination of specific arsenic compounds. Variations in emission, rates of more than an order of magnitude have been reported for some boiler types. Data on the capture of arsenic by environmental control technologies are available primarily for systems with cold electrostatic precipitators, where removals of approximately 50 to 98% have been reported. Limited data for wet flue-gas-desulfurization systems show widely varying removals of from 6 to 97%. On the other hand, waste incineration plants report removals in a narrow range of from 95 to 99%. This report briefly reviews several areas of research that may lead to improvements in arsenic control for existing flue-gas-cleanup technologies and summarizes the status of analytical techniques for measuring arsenic emissions from combustion sources.

  7. Arsenic, iron, lead, manganese, and uranium concentrations in private bedrock wells in southeastern New Hampshire, 2012-2013

    USGS Publications Warehouse

    Flanagan, Sarah M.; Belaval, Marcel; Ayotte, Joseph D.

    2014-01-01

    Trace metals, such as arsenic, iron, lead, manganese, and uranium, in groundwater used for drinking have long been a concern because of the potential adverse effects on human health and the aesthetic or nuisance problems that some present. Moderate to high concentrations of the trace metal arsenic have been identified in drinking water from groundwater sources in southeastern New Hampshire, a rapidly growing region of the State (Montgomery and others, 2003). During the past decade (2000–10), southeastern New Hampshire, which is composed of Hillsborough, Rockingham, and Strafford Counties, has grown in population by nearly 48,700 (or 6.4 percent) to 819,100. These three counties contain 62 percent of the State’s population but encompass only about 22 percent of the land area (New Hampshire Office of Energy and Planning, 2011). According to a 2005 water-use study (Hayes and Horn, 2009), about 39 percent of the population in these three counties in southeastern New Hampshire uses private wells as sources of drinking water, and these wells are not required by the State to be routinely tested for trace metals or other contaminants. Some trace metals have associated human-health benchmarks or nonhealth guidelines that have been established by the U.S. Environmental Protection Agency (EPA) to regulate public water supplies. The EPA has established a maximum contaminant level (MCL) of 10 micrograms per liter (μg/L) for arsenic (As) and a MCL of 30 μg/L for uranium (U) because of associated health risks (U.S. Environmental Protection Agency, 2012). Iron (Fe) and manganese (Mn) are essential for human health, but Mn at high doses may have adverse cognitive effects in children (Bouchard and others, 2011; Agency for Toxic Substances and Disease Registry, 2012); therefore, the EPA has issued a lifetime health advisory (LHA) of 300 μg/L for Mn. Recommended secondary maximum contaminant levels (SMCLs) for Fe (300 μg/L) and Mn (50 μg/L) were established primarily as

  8. EPA`s proposed metal sediment criteria: Good news for industry

    SciTech Connect

    Bleiler, J.A.

    1996-09-01

    A recent Environmental Protection Agency initiative may enable contaminated-site owners and other responsible parties to negotiate more realistic sediment cleanup actions with state and federal agencies. EPA in December 1994 issued Equilibrium Partitioning Approach to Predicting Metal Bioavailability in Sediments and the Derivation of Sediment Quality Criteria (SQC) for Metals, a report on metals contamination in sediments. This document marks the agency`s first national initiative to develop SQC for metals. Because it could reduce site remediation costs substantially, the new approach may be good news for industry. The initiative`s goal is to protect sediment-dwelling organisms from toxic levels of such metals as cadmium, lead, zinc, nickel and copper.

  9. Arsenic: homicidal intoxication

    SciTech Connect

    Massey, E.W.; Wold, D.; Heyman, A.

    1984-07-01

    Arsenic-induced deaths have been known to occur from accidental poisoning, as a result of medical therapy, and from intentional poisonings in homicide and suicide. Twenty-eight arsenic deaths in North Carolina from 1972 to 1982 included 14 homicides and seven suicides. In addition, 56 hospitalized victims of arsenic poisoning were identified at Duke Medical Center from 1970 to 1980. Four case histories of arsenic poisoning in North Carolina are presented and clinical manifestations are discussed. In view of the continued widespread use of arsenic in industry and agriculture, and its ubiquity in the environment, arsenic poisoning will continue to occur. A need for knowledge of its toxicity and of the clinical manifestations of acute and chronic arsenic poisoning will also continue.

  10. Arsenic cardiotoxicity: An overview.

    PubMed

    Alamolhodaei, Nafiseh Sadat; Shirani, Kobra; Karimi, Gholamreza

    2015-11-01

    Arsenic, a naturally ubiquitous element, is found in foods and environment. Cardiac dysfunction is one of the major causes of morbidity and mortality in the world. Arsenic exposure is associated with various cardiopathologic effects including ischemia, arrhythmia and heart failure. Possible mechanisms of arsenic cardiotoxicity include oxidative stress, DNA fragmentation, apoptosis and functional changes of ion channels. Several evidences have shown that mitochondrial disruption, caspase activation, MAPK signaling and p53 are the pathways for arsenic induced apoptosis. Arsenic trioxide is an effective and potent antitumor agent used in patients with acute promyelocytic leukemia and produces dramatic remissions. As2O3 administration has major limitations such as T wave changes, QT prolongation and sudden death in humans. In this review, we discuss the underlying pathobiology of arsenic cardiotoxicity and provide information about cardiac health effects associated with some medicinal plants in arsenic toxicity.

  11. Arsenic removal from water

    DOEpatents

    Moore, Robert C.; Anderson, D. Richard

    2007-07-24

    Methods for removing arsenic from water by addition of inexpensive and commonly available magnesium oxide, magnesium hydroxide, calcium oxide, or calcium hydroxide to the water. The hydroxide has a strong chemical affinity for arsenic and rapidly adsorbs arsenic, even in the presence of carbonate in the water. Simple and commercially available mechanical methods for removal of magnesium hydroxide particles with adsorbed arsenic from drinking water can be used, including filtration, dissolved air flotation, vortex separation, or centrifugal separation. A method for continuous removal of arsenic from water is provided. Also provided is a method for concentrating arsenic in a water sample to facilitate quantification of arsenic, by means of magnesium or calcium hydroxide adsorption.

  12. Superfund record of decision (EPA Region 2): GCL Tie and Treating Inc., Operable Unit 1, Sidney, NY, September 30, 1994

    SciTech Connect

    1995-04-01

    This Record of Decision (ROD) documents the U.S. Environmental Protection Agency`s (EPA`s) selection of the remedial action for the GCL Tie and Treating site. The selected remedy pertains to the first of two operable units for the site and addresses the contaminated soils and debris located on the GCL property.

  13. 78 FR 22540 - Notice of Public Meeting/Webinar: EPA Method Development Update on Drinking Water Testing Methods...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... AGENCY Notice of Public Meeting/Webinar: EPA Method Development Update on Drinking Water Testing Methods...: Notice of public meeting. SUMMARY: The U.S. Environmental Protection Agency (EPA) Office of Ground Water and Drinking Water, Standards and Risk Management Division's Technical Support Center (TSC)...

  14. Enhanced Removal of Arsenic and Antimony in the Mining Site by Calcined γ-Fe2O3/Layered Double Hydroxide Nanocomposite

    NASA Astrophysics Data System (ADS)

    Lee, Sang-Ho; Choi, Heechul; Kim, Kyoung-Woong

    2016-04-01

    Arsenic (As) and Antimony (Sb) have been recognized as harmful contaminants in aquatic environment due to its high toxicity and carcinogenicity. Especially, the contamination of arsenic in the mining areas is considered as a serious emerging environmental issue in Korea. Due to the hazardous effect of arsenic, the United States Environmental Protection Agency (US EPA) regulated maximum contamination level of arsenic to 10 μg/L in drinking water. The harmful effect on human health by excessive intake of antimony was also reported by previous studies, and severe contamination level (100 - 7,000 μg/L) of antimony reported in surface and groundwater of abandoned mining area in China and Slovakia. Therefore, US EPA regulated maximum contaminants level of antimony in drinking water to 6 μg/L. In order to remove anionic contaminants in drinking water, various type of nanomaterials have been developed. Layered double hydroxide (LDH) is the artificial anionic clay that is based on the layered structure of positively charged brucite-like layers with interlayers of anions. The LDH is one of the promising nanomaterials for the removal of anionic contaminants because it has high selectivity for arsenic, phosphate, chromium and antimony. However, the biggest problem of LDH for wastewater treatment is that the particles cannot be easily separated after the removal of contaminants. In this study, magnetic nanoparticles (γ-Fe2O3) supported LDH nanocomposite (γ-Fe2O3/LDH) was investigated to enhance magnetic particle recovery and removal efficiency for arsenic and antimony. The calcined γ-Fe2O3/LDH nanocomposites synthesized by co-precipitation method, and the crystallographic properties of maghemite (γ-Fe2O3) and layered structure of LDH were confirmed by X-ray diffraction. The nano-sized γ-Fe2O3 (30 to 50 nm) was stably attached on the surface of LDH (100 to 150 nm) and O1s spectrum by X-ray photoelectron spectroscopy (XPS) explained that there are both physical and

  15. Strategy for environmental health research at EPA

    SciTech Connect

    Reiter, L.W.; Sexton, K.

    1990-12-01

    Major environmental legislation has given the U.S. Environmental Protection Agency (EPA) the regulatory tools it needs to protect our environment and public health. Environmental protection, however, requires more than legislative vehicles; appropriate regulatory decisions based on those laws must be founded on scientific data concerning the scope and magnitude of health risks associated with the environmental hazards to which the public is exposed. To address the broad range of environmental contaminants covered under various legislative statutes, HERL research must assist EPA in evaluating the health risks for diverse environmental agents. While the chemical and physical composition of these pollutants differs significantly, the evaluation of their health effects must address a common set of issues: exposure, or the extent to which humans are exposed to pollutants in the environment; dose, or the relationship between the exposure and the dose of the pollutant received at the site(s) of toxic action within the body; and effect, or the health impact from the pollutant dose. These fundamental issues form the risk assessment paradigm that underlies the research needs of all EPA regulatory program areas, and therefore they are central to the entire HERL program.

  16. EPA releases progress report on hydraulic fracturing study

    NASA Astrophysics Data System (ADS)

    Showstack, Randy

    2013-01-01

    The U.S. Environmental Protection Agency (EPA) provided a 21 December progress report on its ongoing national study about the potential impacts of hydraulic fracturing on drinking water resources. The agency said that a draft of the congressionally requested study will be released in 2014 for public and peer review and that its progress report does not draw conclusions about the potential impacts of hydraulic fracturing, often referred to as fracking.

  17. 75 FR 26955 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-13

    ....12. On July 30, 2009 (74 FR 38005), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Incinerators (Renewal), EPA ICR Number 1058.10, OMB Control Number 2060-0040 AGENCY... . Title: NSPS for Incinerators (Renewal). ICR Numbers: EPA ICR Number 1058.10, OMB Control Number...

  18. 75 FR 71430 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-23

    ...-RCRA- 2010-0512, to (1) EPA, either online using www.regulations.gov (our preferred method), or by e-mail to rcra-docket@epa.gov , or by mail to: RCRA Docket (28221T), U.S. Environmental Protection Agency... July 8, 2010 (75 FR 39248), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA...

  19. 78 FR 36773 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-19

    ..., 2012 (77 FR 63813), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received no... Request; NESHAP for Flexible Polyurethane Foam Product (Renewal), EPA ICR Number 1783.06 AGENCY...: NESHAP for Flexible Polyurethane Foam Production (Renewal) ICR Numbers: EPA ICR Number 1783.06,...

  20. 77 FR 42725 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-20

    ... Request; Consumer Research through Focus Groups to Develop Improved Labeling for Pesticide Products AGENCY...-OPP- 2011-0902, to (1) EPA online using www.regulations.gov (our preferred method), or by mail to: EPA..., 2011 (76 FR 76399), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received...

  1. 75 FR 5785 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-04

    ....12. On July 30, 2009 (74 FR 38004), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NESHAP for Site Remediation, EPA ICR Number 2062.04, OMB Control Number 2060-0534 AGENCY... . Title: NESHAP for Site Remediation. ICR Numbers: EPA ICR Number 2062.04, OMB Control Number...

  2. ARSENIC (+3 OXIDATION STATE) METHYLTRANSFERASE AND THE METHYLATION OF ARSENICALS

    EPA Science Inventory

    Metabolic conversion of inorganic arsenic into methylated products is a multistep process that yields mono, di, and trimethylated arsenicals. In recent years, it has become apparent that formation of methylated metabolites of inorganic arsenic is not necessarily a detoxification...

  3. 1. Overview of EPA Farm Lab Building 1506, Sioux silo ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Overview of EPA Farm Lab Building 15-06, Sioux silo and slaughter addition (featuring poles from hay shed), facing east-northeast. - Nevada Test Site, Environmental Protection Agency Farm, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  4. 40 CFR 85.2217 - Loaded test-EPA 91.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 19 2012-07-01 2012-07-01 false Loaded test-EPA 91. 85.2217 Section 85.2217 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF AIR POLLUTION FROM MOBILE SOURCES Emission Control System Performance Warranty Short Tests §...

  5. 40 CFR 85.2213 - Idle test-EPA 91.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 19 2013-07-01 2013-07-01 false Idle test-EPA 91. 85.2213 Section 85.2213 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF AIR POLLUTION FROM MOBILE SOURCES Emission Control System Performance Warranty Short Tests §...

  6. 40 CFR 85.2213 - Idle test-EPA 91.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 19 2012-07-01 2012-07-01 false Idle test-EPA 91. 85.2213 Section 85.2213 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF AIR POLLUTION FROM MOBILE SOURCES Emission Control System Performance Warranty Short Tests §...

  7. 40 CFR 85.2217 - Loaded test-EPA 91.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 19 2013-07-01 2013-07-01 false Loaded test-EPA 91. 85.2217 Section 85.2217 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF AIR POLLUTION FROM MOBILE SOURCES Emission Control System Performance Warranty Short Tests §...

  8. 40 CFR 85.2217 - Loaded test-EPA 91.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false Loaded test-EPA 91. 85.2217 Section 85.2217 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF AIR POLLUTION FROM MOBILE SOURCES Emission Control System Performance Warranty Short Tests §...

  9. 40 CFR 501.21 - Program reporting to EPA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Program reporting to EPA. 501.21 Section 501.21 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SEWAGE SLUDGE STATE SLUDGE MANAGEMENT PROGRAM REGULATIONS Development and Submission of State Programs § 501.21...

  10. EPA METHODS FOR EVALUATING WETLAND CONDITION, WETLANDS CLASSIFICATION

    EPA Science Inventory

    In 1999, the U.S. Environmental Protection Agency (EPA) began work on this series of reports entitled Methods for Evaluating Wetland Condition. The purpose of these reports is to help States and Tribes develop methods to evaluate 1) the overall ecological condition of wetlands us...

  11. NARSTO EPA SS LOS ANGELES AETHALOMETER EC DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS LOS ANGELES AETHALOMETER EC DATA Project Title:  NARSTO Discipline:  ... Carbonaceous Aerosols Particulate Matter Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Los Angeles, California SCAR-B ...

  12. NARSTO EPA SS LOS ANGELES TEOM PM25 DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS LOS ANGELES TEOM PM25 DATA Project Title:  NARSTO Discipline:  ... Particulate Matter Mass Concentration Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Los Angeles, California SCAR-B ...

  13. NARSTO EPA SS HOUSTON NH3 HNO3 DATA

    Atmospheric Science Data Center

    2014-04-25

    NARSTO EPA SS HOUSTON NH3 HNO3 DATA Project Title:  NARSTO Discipline:  ... Parameters:  Ammonia Nitric Acid Order Data:  ASDC Order Tool:   Order Data Guide Documents:  ... Earth Related Data:  Environmental Protection Agency Supersites Houston, Texas SCAR-B Block:  ...

  14. DERMAL EXPOSURE ASSESSMENT: A SUMMARY OF EPA APPROACHES

    EPA Science Inventory

    This final report presents a concise description and evaluation of the approaches used in the Agency for dermal exposure assessment including a discussion about harmonization and research needs in this area. The report is intended to be used by EPA program offices in their effort...

  15. 40 CFR 725.17 - Consultation with EPA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Consultation with EPA. 725.17 Section 725.17 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS General Provisions...

  16. 40 CFR 725.17 - Consultation with EPA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Consultation with EPA. 725.17 Section 725.17 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS General Provisions...

  17. 40 CFR 725.17 - Consultation with EPA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Consultation with EPA. 725.17 Section 725.17 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS General Provisions...

  18. 40 CFR 172.26 - EPA review of permits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false EPA review of permits. 172.26 Section 172.26 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS... adverse effects on the environment; (iii) That new evidence demonstrates that any tolerance upon which...

  19. THE EPA'S EMERGING FOCUS ON LIFE CYCLE ASSESSMENT

    EPA Science Inventory

    EPA has been actively engaged in LCA research since 1990 to help advance the methodology and application of life cycle thinking in decision making. Across the Agency consideration of the life cycle concept is increasing in the development of policies and programs. A major force i...

  20. UNC-EPA Internship Presents Opportunity for Students

    ERIC Educational Resources Information Center

    Robertson, W. Davenport

    1976-01-01

    The U.S. Environmental Protection Agency has a contract with the University of North Carolina School of Library Science for support services in the operation of the EPA Library. The contract is carried out through an internship which permits students to experience special library work. (Author/PF)

  1. 40 CFR 761.202 - EPA identification numbers.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Section 761.202 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... PROHIBITIONS PCB Waste Disposal Records and Reports § 761.202 EPA identification numbers. (a) General. Any generator, commercial storer, transporter, or disposer of PCB waste who is required to have an...

  2. 40 CFR 761.202 - EPA identification numbers.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Section 761.202 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... PROHIBITIONS PCB Waste Disposal Records and Reports § 761.202 EPA identification numbers. (a) General. Any generator, commercial storer, transporter, or disposer of PCB waste who is required to have an...

  3. 40 CFR 761.202 - EPA identification numbers.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Section 761.202 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... PROHIBITIONS PCB Waste Disposal Records and Reports § 761.202 EPA identification numbers. (a) General. Any generator, commercial storer, transporter, or disposer of PCB waste who is required to have an...

  4. 40 CFR 761.202 - EPA identification numbers.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Section 761.202 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... PROHIBITIONS PCB Waste Disposal Records and Reports § 761.202 EPA identification numbers. (a) General. Any generator, commercial storer, transporter, or disposer of PCB waste who is required to have an...

  5. 40 CFR 761.202 - EPA identification numbers.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Section 761.202 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... PROHIBITIONS PCB Waste Disposal Records and Reports § 761.202 EPA identification numbers. (a) General. Any generator, commercial storer, transporter, or disposer of PCB waste who is required to have an...

  6. 40 CFR 197.37 - Can EPA amend this rule?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 26 2013-07-01 2013-07-01 false Can EPA amend this rule? 197.37 Section 197.37 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) RADIATION PROTECTION PROGRAMS PUBLIC HEALTH AND ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR YUCCA MOUNTAIN, NEVADA...

  7. GENOMIC IMPLICATIONS FOR EPA REGULATORY AND RISK ASSESSMENT APPLICATIONS

    EPA Science Inventory

    The Environmental Protection Agency (EPA) issued its Interim Policy on Genomics in June 2002. The policy acknowledges that genomics data and analyses will significantly impact many areas of scientific research as well as human health and ecological assessments. Further, the inter...

  8. 40 CFR 35.936-6 - EPA responsibility.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false EPA responsibility. 35.936-6 Section 35.936-6 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE STATE AND LOCAL ASSISTANCE Grants for Construction of Treatment Works-Clean Water Act § 35.936-6...

  9. 40 CFR 35.936-6 - EPA responsibility.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false EPA responsibility. 35.936-6 Section 35.936-6 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL ASSISTANCE STATE AND LOCAL ASSISTANCE Grants for Construction of Treatment Works-Clean Water Act § 35.936-6...

  10. LIMITED-USE CHEMICAL PROTECTIVE CLOTHING FOR EPA SUPERFUND ACTIVITIES

    EPA Science Inventory

    Because contractor field personnel complained about the poor durability and fit of limited-use chemical protective clothing (CPC) most commonly used at hazardous waste site operations, the U.S. Environmental Protection Agency (EPA) initiated a study to • characterize use of CPC...

  11. 3. View of EPA Farm Lab Building 1506 (with sliding ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. View of EPA Farm Lab Building 15-06 (with sliding doors open to slaughter addition) and Sioux silo, facing north-northwest - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  12. 5. View of interior, EPA Farm Lab Building 1506 slaughter ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. View of interior, EPA Farm Lab Building 15-06 slaughter addition (featuring cold slaughter area), facing north-northeast - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  13. 2. Oblique view of EPA Farm Lab Building 1506 (with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Oblique view of EPA Farm Lab Building 15-06 (with slaughter addition at far left), facing southwest - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  14. 4. Oblique view of EPA Farm Lab Building 1506 (with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Oblique view of EPA Farm Lab Building 15-06 (with sliding door open to milking area), Sioux silo and slaughter addition, facing northeast - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

  15. 40 CFR 725.17 - Consultation with EPA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Consultation with EPA. 725.17 Section 725.17 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS General Provisions...

  16. 40 CFR 725.17 - Consultation with EPA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Consultation with EPA. 725.17 Section 725.17 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES CONTROL ACT REPORTING REQUIREMENTS AND REVIEW PROCESSES FOR MICROORGANISMS General Provisions...

  17. 40 CFR 711.15 - Reporting information to EPA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Reporting information to EPA. 711.15 Section 711.15 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES...—Codes for Reporting Industrial Sectors Code Sector description IS1 Agriculture, forestry, fishing,...

  18. Summary Report of the NSF/EPA WATERS Network Workshop

    EPA Science Inventory

    The National Science Foundation (NSF) and The U.S. Environmental Protection Agency (EPA) organized a workshop to support The WATer and Environmental Research Systems (WATERS) Network project. The WATERS Network is a new joint initiative of the environmental engineering and hydrol...

  19. 40 CFR 35.683 - Annual amount reserved by EPA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Annual amount reserved by EPA. 35.683 Section 35.683 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GRANTS AND OTHER FEDERAL... to Tribes under section 1443(b) of the Safe Drinking Water Act....

  20. The Development and Uses of EPA's SPECIATE Database

    EPA Science Inventory

    SPECIATE is the U.S. Environmental Protection Agency's (EPA) repository of volatile organic compounds (VOC) and particulate matter (PM) speciation profiles of air pollution sources. These source profiles can be used to (l) provide input to chemical mass balance (CMB) receptor mod...

  1. The U.S. EPA Science Advisory Board Evaluation (2001) of the EPA dioxin reassessment.

    PubMed

    Paustenbach, Dennis J

    2002-10-01

    The U.S. Environmental Protection Agency (EPA) began a "reassessment" of the risks posed by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD or dioxin) and related chemicals in 1991 and issued an interim report in 1994. In 1995, the Science Advisory Board (SAB) reviewed this document and requested revisions. After considerable additional work, EPA issued its final draft report in September 2000. A new EPA SAB reviewed this draft and issued its recommendations in June 2001. This group of scientists offered suggestions to EPA on the following topics, which are discussed in some detail in this article: classification as a "known" human carcinogen, how to estimate the carcinogenic potency, the possible significance of the noncancer hazard, the proper dose metric for cancer and noncancer effects, the uncertainties inherent in the toxicity equivalency factor approach, use of the margin of exposure approach, adequacy of the exposure assessment, body burden calculations, risks to breast feeding children, nonmonotonic responses (U- or J-shaped dose-response curves, or hormetic effect), the possible significance of naturally occurring dioxin-like chemicals, and risks to special populations. The basis for the recommendations, as generally presented in the SAB report, is described here. A discussion of some of the recently published work within the regulatory and scientific communities that has been issued since the SAB report is also presented.

  2. 48 CFR 1553.213-70 - EPA Form 1900-8, Procurement Request/Order.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true EPA Form 1900-8, Procurement Request/Order. 1553.213-70 Section 1553.213-70 Federal Acquisition Regulations System ENVIRONMENTAL PROTECTION AGENCY CLAUSES AND FORMS FORMS Prescription of Forms 1553.213-70 EPA Form...

  3. 40 CFR 761.205 - Notification of PCB waste activity (EPA Form 7710-53).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... handler must renotify the Agency include, but are not limited to the following: the company changes... CFR PART 761” on the manifests, records, and reports which they shall prepare under this subpart... using EPA Form 7710-53 and those activities change, the facility must resubmit EPA Form 7710-53...

  4. 40 CFR 1068.15 - What general provisions apply for EPA decision-making?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 32 2010-07-01 2010-07-01 false What general provisions apply for EPA decision-making? 1068.15 Section 1068.15 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Miscellaneous Provisions § 1068.15 What general provisions apply for EPA decision-making? (a) The...

  5. 48 CFR 1552.211-79 - Compliance with EPA policies for information resources management.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Regulations System ENVIRONMENTAL PROTECTION AGENCY CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false Compliance with EPA... acquisition, creation, or modification of a computer program or automated data base for delivery to EPA or...

  6. 40 CFR 3.10 - What are the requirements for electronic reporting to EPA?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false What are the requirements for electronic reporting to EPA? 3.10 Section 3.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY GENERAL CROSS-MEDIA ELECTRONIC REPORTING Electronic Reporting to EPA § 3.10 What are the requirements...

  7. 76 FR 49473 - Petition to Maximize Practical Utility of List 1 Chemicals Screened Through EPA's Endocrine...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ... AGENCY Petition to Maximize Practical Utility of List 1 Chemicals Screened Through EPA's Endocrine... decisions on data received in response to the test orders issued under the Endocrine Disruptor Screening...'' system, which means EPA will not know your identity or contact information unless you provide it in...

  8. RESULTS OF THE SEPTEMBER 1997 DOE/EPA DEMONSTRATION OF MULTIMETAL CONTINUOUS EMISSION MONITORING TECHNOLOGIES

    EPA Science Inventory

    In September 1997, the U.S. Department of Energy (DOE) and U.S. Environmental Protection Agency (EPA) co-sponsored a demonstration of several multimetal continuous emission monitos (CEMs). The demonstration, performed at the EPA National Risk Management Research Laboratory, Air P...

  9. 78 FR 17915 - EPA Responses to State and Tribal 2010 Sulfur Dioxide Designation Recommendations: Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-25

    ... availability published February 15, 2013 (78 FR 11124) must be received on or before April 8, 2013. Please... AGENCY 40 CFR Part 81 EPA Responses to State and Tribal 2010 Sulfur Dioxide Designation Recommendations... comment period for the EPA's responses to state and tribal designation recommendations for the 2010...

  10. 40 CFR 166.53 - EPA review of crisis exemption and revocation of authority.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 25 2012-07-01 2012-07-01 false EPA review of crisis exemption and... CONDITIONS Crisis Exemptions § 166.53 EPA review of crisis exemption and revocation of authority. (a) Review. When a crisis exemption is about to be or has already been declared by a State or Federal agency,...

  11. 40 CFR 166.53 - EPA review of crisis exemption and revocation of authority.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 24 2014-07-01 2014-07-01 false EPA review of crisis exemption and... CONDITIONS Crisis Exemptions § 166.53 EPA review of crisis exemption and revocation of authority. (a) Review. When a crisis exemption is about to be or has already been declared by a State or Federal agency,...

  12. 40 CFR 166.53 - EPA review of crisis exemption and revocation of authority.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 25 2013-07-01 2013-07-01 false EPA review of crisis exemption and... CONDITIONS Crisis Exemptions § 166.53 EPA review of crisis exemption and revocation of authority. (a) Review. When a crisis exemption is about to be or has already been declared by a State or Federal agency,...

  13. 40 CFR 166.53 - EPA review of crisis exemption and revocation of authority.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false EPA review of crisis exemption and... CONDITIONS Crisis Exemptions § 166.53 EPA review of crisis exemption and revocation of authority. (a) Review. When a crisis exemption is about to be or has already been declared by a State or Federal agency,...

  14. 40 CFR 166.53 - EPA review of crisis exemption and revocation of authority.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false EPA review of crisis exemption and... CONDITIONS Crisis Exemptions § 166.53 EPA review of crisis exemption and revocation of authority. (a) Review. When a crisis exemption is about to be or has already been declared by a State or Federal agency,...

  15. THE EPA LEAD SCAVENGER STUDY

    EPA Science Inventory

    With assistance from the Association of State and Territorial Air and Solid Waste Management Officials (ASTSWMO), the U.S. EPA Office of Underground Storage Tanks (OUST) and the U.S. EPA Office of Research and Development (ORD) conducted a survey to determine the distribution of ...

  16. OVERVIEW OF ECOTOXICOLOGY RESEARCH AT THE US EPA NHEERL, MID-CONTINENT ECOLOGY DIVISION

    EPA Science Inventory

    The US Environmental Protection Agency is a regulatory agency whose mission is the protection of human health and the environment. The EPA has several Program and Regional Offices that form the regulatory side of the Agency. The Office of Research and Development (ORD) is a separ...

  17. The Challenge of the Environment: A Primer on EPA's Statutory Authority.

    ERIC Educational Resources Information Center

    Environmental Protection Agency, Washington, DC.

    In response to continued discussion of pollution and environmental issues, the Environmental Protection Agency (EPA) has designed this booklet to give interested citizens an idea of the scope of the agency's duties and responsibilities by providing a brief summary of its legal authority. An overview of the agency shows it is an independent,…

  18. 78 FR 23928 - EPA Office of External Affairs and Environmental Education; Cancellation of the National...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-23

    ... AGENCY EPA Office of External Affairs and Environmental Education; Cancellation of the National Environmental Education Advisory Council Meetings Scheduled for May 22, 2013 and June 19th, 2013 AGENCY... Agency) Office of External Affairs and Environmental Education (OEAEE) is issuing this notice to...

  19. Arsenic Species in Drinking Water Wells in the USA with High Arsenic Concentrations

    EPA Science Inventory

    As part of the United States Environmental Protection Agency (USEPA) arsenic treatment demonstration program, 65 five well waters scattered across the US were speciated for As(III) and As(V). The speciation test data showed that most (60) well waters had one dominant species, but...

  20. Biofuels Research at EPA

    EPA Science Inventory

    The development of sustainable and clean biofuels is a national priority. To do so requires a life-cycle approach that includes consideration of feedstock production and logistics, and biofuel production, distribution, and end use. The US Environmental Protection Agency is suppor...

  1. EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards (EPA/600/R-12/531, May 2012)

    EPA Science Inventory

    In 1997, the U.S. Environmental Protection Agency (EPA) in Research Triangle Park, North Carolina, revised its 1993 version of its traceability protocol for the assay and certification of compressed gas and permeation-device calibration standards. The protocol allows producers of...

  2. Arsenic loads in Spearfish Creek, western South Dakota, water years 1989-91

    USGS Publications Warehouse

    Driscoll, Daniel G.; Hayes, Timothy S.

    1995-01-01

    Numerous small tributaries on the eastern flank of Spearfish Creek originate within a mineralized area with a long history of gold-mining activity. Some streams draining this area are known to have elevated concentrations of arsenic. One such tributary is Annie Creek, where arsenic concentrations regularly approach the Maximum Contaminant Level of 50 mg/L (micrograms per liter) established by the U.S. Environmental Protection Agency. A site on Annie Creek was proposed for inclusion on the National Priorities List by the Environmental Protection Agency in 1991. This report presents information about arsenic loads and concentrations in Spearfish Creek and its tributaries, including Annie Creek. Stream types were classified according to geologic characteris- tics and in-stream arsenic concentrations. The first type includes streams that lack significant arsenic sources and have low in-stream arsenic concentra- tions. The second type has abundant arsenic sources and high in-stream concentrations. The third type has abundant arsenic sources but only moderate in-stream concentrations. The fourth type is a mixture of the first three types. Annual loads of dissolved arsenic were calculated for two reaches of Spearfish Creek to quantify arsenic loads at selected gaging stations during water years 1989-91. Mass-balance calculations also were performed to estimate arsenic concentrations for ungaged inflows to Spearfish Creek. The drainage area of the upstream reach includes significant mineralized areas, whereas the drainage area of the downstream reach generally is without known arsenic sources. The average load of dissolved arsenic transported from the upstream reach of Spearfish Creek, which is representative of a type 4 stream, was 158 kilograms per year, calculated for station 06430900, Spearfish Creek above Spearfish. Gaged headwater tributaries draining unmineralized areas (type 1) contributed only 16 percent of the arsenic load in 63 percent of the discharge. Annie

  3. 76 FR 9780 - Notification of Deletion of System of Records; EPA Parking Control Office File (EPA-10) and EPA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... EPA Parking Control Office File (EPA-10), published in the Federal Register on January 25, 1978 (43 FR... into the Office of Administrative Services Information System (OASIS) (EPA-41). DATES: This notice...

  4. THE NOAA/EPA FLUID MODELING FACILITY'S CONTRIBUTIONS TO THE UNDERSTANDING OF THE ATMOSPHERIC DISPERSION

    EPA Science Inventory

    Over the past thirty years, scientists at the Environmental Protection Agency's (EPA) Fluid Modeling Facility (FMF) have conducted laboratory studies of fluid flow and pollutant dispersion within three distinct experimental chambers: a meteorological wind tunnel, a water-channel ...

  5. 48 CFR 1553.232-74 - EPA Form 1900-10, Contractor's Cumulative Claim and Reconciliation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Regulations System ENVIRONMENTAL PROTECTION AGENCY CLAUSES AND FORMS FORMS Prescription of Forms 1553.232-74... EPA Form 1900-10 shall be used for an accounting of the cumulative charges and costs for...

  6. 48 CFR 1553.232-74 - EPA Form 1900-10, Contractor's Cumulative Claim and Reconciliation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Regulations System ENVIRONMENTAL PROTECTION AGENCY CLAUSES AND FORMS FORMS Prescription of Forms 1553.232-74... EPA Form 1900-10 shall be used for an accounting of the cumulative charges and costs for...

  7. 48 CFR 1553.232-74 - EPA Form 1900-10, Contractor's Cumulative Claim and Reconciliation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Regulations System ENVIRONMENTAL PROTECTION AGENCY CLAUSES AND FORMS FORMS Prescription of Forms 1553.232-74... EPA Form 1900-10 shall be used for an accounting of the cumulative charges and costs for...

  8. Development of EPA Method 525.3 for the Analysis of Semivolatiles in Drinking Water

    EPA Science Inventory

    The United States Environmental Protection Agency (EPA) Office of Ground Water and Drinking Water (OGWDW) collects nationwide occurrence data on contaminants in drinking water using the Unregulated Contaminant Monitoring Regulations (UCMRs). The unregulated contaminants, which ar...

  9. EPA speeds regs for offshore regulations for synthetic-based mud.

    SciTech Connect

    Veil, J. A.; Daly, J. M.; Johnson, N.; Environmental Assessment; EPA; DOE

    1999-09-13

    The Environmental Protection Agency (EPA), in unusual cooperation with industry work groups, has chosen a streamlined approach to resolve synthetic-based mud (SBM) discharge regulations for offshore operations.

  10. EPA Protocol Gas Verification Program - Presented at NIST Gas Panel Meeting

    EPA Science Inventory

    Accurate compressed gas calibration standards are needed to calibrate continuous emission monitors (CEMs) and ambient air quality monitors that are being used for regulatory purposes. US Environmental Protection Agency (EPA) established its traceability protocol to ensure that c...

  11. EPA GROUP VERIFIES PERFORMANCE OF GREENHOUSE GAS EMISSIONS-MITIGATION TECHNOLOGIES

    EPA Science Inventory

    The Greenhouse Gas Technology Verification Center (the Center) is one of 12 independently operated environmental technology verification organizations established by the U.S. Environmental Protection Agency (EPA). The Center provides third-party performance data to industry and o...

  12. 76 FR 80363 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-23

    ... Request; Cooling Water Intake Structures New Facility (Renewal) AGENCY: Environmental Protection Agency... August 25, 2011 (76 FR 53123), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received....regulations.gov . Title: Cooling Water Intake Structures New Facility (Renewal). ICR numbers: EPA ICR No....

  13. 77 FR 66832 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-07

    ... 1320.12. On August 9, 2012 (77 FR 47631), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d... Request; NESHAP for Secondary Aluminum Production (Renewal) AGENCY: Environmental Protection Agency (EPA... www.regulations.gov . Title: NESHAP for Secondary Aluminum Production (Renewal) . ICR Numbers: EPA...

  14. 77 FR 23244 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-18

    ... 1320.12. On May 9, 2011 (76 FR 26900), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA... Request; NSPS for Other Solid Waste Incineration Units (Renewal) AGENCY: Environmental Protection Agency...: NSPS for Other Solid Waste Incineration Units (Renewal). ICR Numbers: EPA ICR Number 2163.04,...

  15. 75 FR 13274 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-19

    ..., 2009 (74 FR 38004), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received no... Commercial and Industrial Solid Waste Incineration Units (Renewal) AGENCY: Environmental Protection Agency... Industrial Solid Waste Incineration Units (Renewal). ICR Numbers: EPA ICR Number 1926.05, OMB Control...

  16. 77 FR 30523 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-23

    ... procedures prescribed in 5 CFR 1320.12. On December 6, 2011 (76 FR 76159), ] EPA sought comments on this ICR... Request; RCRA Definition of Solid Waste (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION... Definition of Solid Waste (Renewal). ICR numbers: EPA ICR No. 2310.02, OMB Control No. 2050-0202. ICR...

  17. 75 FR 3728 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ... prescribed in 5 CFR 1320.12. On July 8, 2009 (74 FR 32580), EPA sought comments on this ICR pursuant to 5 CFR... Taconite Iron Ore Processing (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice... . Title: NESHAP for Taconite Iron Ore Processing (Renewal). ICR Numbers: EPA ICR Number 2050.04,...

  18. 75 FR 3727 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ... prescribed in 5 CFR 1320.12. On July 8, 2009 (74 FR 32580), EPA sought comments on this ICR pursuant to 5 CFR... Mercury Cell Chlor- Alkali Plants (Renewal) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice... . Title: NESHAP for Mercury Cell Chlor-Alkali Plants. ICR Numbers: EPA ICR Number 2046.05, OMB...

  19. 75 FR 39248 - Agency Information Collection Activities; Proposed Collection; Comment Request; Land Disposal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... AGENCY [EPA-HQ-RCRA-2010-0512, FRL-9172-8, EPA ICR Number 1442.20, OMB Control Number 2050-0085] Agency...: Submit your comments, identified by Docket ID No. EPA-HQ- RCRA-2010-0512, by one of the following methods: http://www.regulations.gov : Follow the on-line instructions for submitting comments. E-mail:...

  20. 76 FR 6460 - Agency Information Collection Activities; Proposed Collection; Comment Request; Reporting and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-04

    ... Recordkeeping Requirements Under EPA's Natural Gas STAR Program AGENCY: Environmental Protection Agency. ACTION... distribute natural gas and that join the Natural Gas STAR Program. Title: Reporting and Recordkeeping Requirements Under EPA's Natural Gas STAR Program. ICR numbers: EPA ICR No. 1736.06, OMB Control No....