Download or read book Critical Aspects of EPA s IRIS Assessment of Inorganic Arsenic written by National Research Council and published by National Academies Press. This book was released on 2013-11-20 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The US Environmental Protection Agency (EPA) Integrated Risk Information System (IRIS) program develops toxicologic assessments of environmental contaminants. IRIS assessments provide hazard identification and dose-response assessment information. The information is then used in conjunction with exposure information to characterize risks to public health and may be used in risk-based decisionmaking, in regulatory actions, and for other risk-management purposes. Since the middle 1990s, EPA has been in the process of updating the IRIS assessment of inorganic arsenic. In response to a congressional mandate for an independent review of the IRIS assessment of inorganic arsenic, EPA requested that the National Research Council convene a committee to conduct a two-phase study. Critical Aspects of EPA's IRIS Assessment of Inorganic Arsenic is the report of the first phase of that study. This report evaluates critical scientific issues in assessing cancer and noncancer effects of oral exposure to inorganic arsenic and offers recommendations on how the issues could be addressed in EPA's IRIS assessment.
Download or read book Review of EPA s Updated Problem Formulation and Protocol for the Inorganic Arsenic IRIS Assessment written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-10-31 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Integrated Risk Information System (IRIS) is a program within the US Environmental Protection Agency (EPA) that is responsible for developing toxicologic assessments of environmental contaminants. An IRIS assessment contains hazard identifications and dose-response assessments of various chemicals related to cancer and noncancer outcomes. Although the program was created to increase consistency among toxicologic assessments within the agency, federal, state, and international agencies and other organizations have come to rely on IRIS assessments for setting regulatory standards, establishing exposure guidelines, and estimating risks to exposed populations. The EPA has been working on its IRIS assessment of inorganic arsenic (iAs) for many years, and recently released its plans for completing it in the Updated Problem Formulation and Protocol for the Inorganic Arsenic IRIS Assessment. Much of the update was made in response to recommendations in a 2013 report made by the National Academies of Sciences, Engineering, and Medicine. The National Academies recently convened another evaluation of whether the various elements of the IRIS iAs assessment plan are appropriate to synthesize the scientific evidence and quantitate estimates of iAs toxicity. Review of EPA's IRIS Assessment Plan for Inorganic Arsenic explores the EPA's approach to prioritizing health outcomes, EPA's systematic review methods, EPA's consideration of potential health effects from early life exposures, mode-of-action information to inform dose-response analyses, and various approaches to investigate dose-response relationships.
Download or read book Critical Aspects of EPA s IRIS Assessment of Inorganic Arsenic written by National Research Council and published by National Academies Press. This book was released on 2013-12-20 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The US Environmental Protection Agency (EPA) Integrated Risk Information System (IRIS) program develops toxicologic assessments of environmental contaminants. IRIS assessments provide hazard identification and dose-response assessment information. The information is then used in conjunction with exposure information to characterize risks to public health and may be used in risk-based decisionmaking, in regulatory actions, and for other risk-management purposes. Since the middle 1990s, EPA has been in the process of updating the IRIS assessment of inorganic arsenic. In response to a congressional mandate for an independent review of the IRIS assessment of inorganic arsenic, EPA requested that the National Research Council convene a committee to conduct a two-phase study. Critical Aspects of EPA's IRIS Assessment of Inorganic Arsenic is the report of the first phase of that study. This report evaluates critical scientific issues in assessing cancer and noncancer effects of oral exposure to inorganic arsenic and offers recommendations on how the issues could be addressed in EPA's IRIS assessment.
Download or read book EPA Science New Assessment Process Further Limits the Credibility and Timeliness of EPA s Assessments of Toxic Chemicals written by John B. Stephenson and published by DIANE Publishing. This book was released on 2009-03 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA¿s Integrated Risk Info. System (IRIS) contains EPA¿s scientific position on the potential human health effects of exposure to more than 540 chemicals. Toxicity assessments in the IRIS database constitute the first two critical steps of the risk assessment process. Thus, IRIS is a critical component of EPA¿s capacity to support scientifically sound environmental decisions, policies, and regulations. This testimony discusses: (1) highlights of a report, ¿Chemical Assessments: Low Productivity and New Interagency Review Process Limit the Usefulness and Credibility of EPA¿s IRIS:¿; (2) key aspects of EPA¿s revised IRIS assessment process; and (3) progress EPA has made in completing assessments in FY 2008. Charts and tables.
Download or read book Chemical Assessments EPA s New Assessment Process Will Further Limit the Productivity and Credibility of Its Integrated Risk Info System written by John B. Stephenson and published by DIANE Publishing. This book was released on 2008-10 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA¿s Integrated Risk Info. System (IRIS) contains EPA¿s position on the potential human health effects of exposure to more than 540 chemicals. Toxicity assessments in the IRIS database constitute the first 2 critical steps of the risk assessment process, which in turn provides the foundation for risk mgmt. decisions. Thus, IRIS is a critical component of EPA¿s capacity to support scientifically sound environmental decisions, policies, and regulations. This testimony discusses: (1) highlights of a 3/08 report, ¿Chemical Assessments: Low Productivity and New Interagency Review Process Limit the Usefulness and Credibility of EPA¿s Integrated Risk Info. System;¿ and (2) key aspects of EPA¿s revised IRIS assessment process, released on 4/10/08.
Download or read book Review of EPA s Integrated Risk Information System IRIS Process written by National Research Council and published by National Academies Press. This book was released on 2014-06-25 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Integrated Risk Information System (IRIS) is a program within the US Environmental Protection Agency (EPA) that is responsible for developing toxicologic assessments of environmental contaminants. An IRIS assessment contains hazard identifications and dose-response assessments of various chemicals related to cancer and noncancer outcomes. Although the program was created to increase consistency among toxicologic assessments within the agency, federal, state, and international agencies and other organizations have come to rely on IRIS assessments for setting regulatory standards, establishing exposure guidelines, and estimating risks to exposed populations. Over the last decade, the National Research Council (NRC) has been asked to review some of the more complex and challenging IRIS assessments, including those of formaldehyde, dioxin, and tetrachloroethylene. In 2011, an NRC committee released its review of the IRIS formaldehyde assessment. Like other NRC committees that had reviewed IRIS assessments, the formaldehyde committee identified deficiencies in the specific assessment and more broadly in some of EPA's general approaches and specific methods. Although the committee focused on evaluating the IRIS formaldehyde assessment, it provided suggestions for improving the IRIS process and a roadmap for its revision in case EPA decided to move forward with changes to the process. Congress directed EPA to implement the report's recommendations and then asked the National Research Council to review the changes that EPA was making (or proposing to make) in response to the recommendations. Review of EPA's Integrated Risk Information System (IRIS) Process provides an overview of some general issues associated with IRIS assessments. This report then addresses evidence identification and evaluation for IRIS assessments and discusses evidence integration for hazard evaluation and methods for calculating reference values and unit risks. The report makes recommendations and considerations for future directions. Overall, Review of EPA's Integrated Risk Information System Process finds that substantial improvements in the IRIS process have been made, and it is clear that EPA has embraced and is acting on the recommendations in the NRC formaldehyde report. The recommendations of this report should be seen as building on the progress that EPA has already made.
Download or read book EPA Chemical Assessments Process Reforms Offer the Potential to Address Key Problems written by John B. Stephenson and published by DIANE Publishing. This book was released on 2009-12 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA Integrated Risk Info. System (IRIS) contains EPA's scientific position on the potential human health effects of exposure to more than 540 chemicals. Toxicity assessments in the IRIS database constitute the first two critical steps of the risk assessment process. Thus, IRIS is a critical component of EPA's capacity to support scientifically sound environmental decisions, policies, and regulations. This testimony discusses: (1) the findings from a March 2008 report ¿Chemical Assessments: Low Productivity and New Interagency Review Process Limit the Usefulness and Credibility of EPA's Integrated Risk Info. System¿ and related testimonies; and (2) a preliminary evaluation of the revised IRIS assessment process EPA issued on May 21, 2009.
Download or read book EPA Science written by United States Government Accountability Office and published by Createspace Independent Publishing Platform. This book was released on 2017-10-04 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Environmental Protection Agency's (EPA) Integrated Risk Information System (IRIS) contains EPA's scientific position on the potential human health effects of exposure to more than 540 chemicals. Toxicity assessments in the IRIS database constitute the first two critical steps of the risk assessment process, which in turn, provides the foundation for risk management decisions. Thus, IRIS is a critical component of EPA's capacity to support scientifically sound environmental decisions, policies, and regulations. This testimony discusses (1) highlights of GAO's March 2008 report, Chemical Assessments: Low Productivity and New Interagency Review Process Limit the Usefulness and Credibility of EPA's Integrated Risk Information System; (2) key aspects of EPA's revised IRIS assessment process, released on April 10, 2008; and (3) progress EPA has made in completing assessments in fiscal year 2008. For the March 2008 report, GAO reviewed and analyzed EPA data and interviewed officials at relevant agencies, including the Office of Management and Budget (OMB). For this testimony, GAO supplemented the prior audit work with a review of EPA's revised IRIS assessment process announced on April 10, 2008. We also updated our information on EPA's assessment productivity through September 12, 2008.
Download or read book Sittig s Handbook of Toxic and Hazardous Chemicals and Carcinogens written by Richard P. Pohanish and published by William Andrew. This book was released on 2008-01-10 with total page 2888 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than a quarter century, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens has proven to be among the most reliable, easy-to-use and essential reference works on hazardous materials. Sittig's 5th Edition remains the lone comprehensive work providing a vast array of critical information on the 2,100 most heavily used, transported, and regulated chemical substances of both occupational and environmental concern.Information is the most vital resource anyone can have when dealing with potential hazardous substance accidents or acts of terror. Sittig's provides extensive data for each of the 2,100 chemicals in a uniform format, enabling fast and accurate decisions in any situation. The chemicals are presented alphabetically and classified as a carcinogen, hazardous substance, hazardous waste, or toxic pollutant. This new edition contains extensively expanded information in all 28 fields for each chemical (see table of contents) and has been updated to keep pace with world events. Chemicals classified as WMD have been included in the new edition as has more information frequently queried by first responders and frontline industrial safety personnel.*Includes and references European chemical identifiers and regulations.*The only single source reference that provides such in-depth information for each chemical.*The two volume set is designed for fast and accurate decision making in any situation.
Download or read book Interior Environment and Related Agencies Appropriations for 2015 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2014 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Financial Services and General Government Appropriations for 2015 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Financial Services and General Government and published by . This book was released on 2014 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Assessments written by and published by . This book was released on 2008 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The EPA s IRIS Program written by United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Investigations and Oversight and published by . This book was released on 2008 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Health Assessments of Chemicals and Contaminants written by Marcus Rowe and published by Nova Science Publishers. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Environmental Protection Agency (EPA) has not conducted a recent evaluation of demand for Integrated Risk Information System (IRIS) toxicity assessments with input from users inside and outside EPA. The health effects information in IRIS provides fundamental scientific information EPA needs to develop human health risk assessments. Specifically, EPA issued a needs assessment report in 2003, which estimated that 50 new or updated IRIS toxicity assessments were needed each year to meet users' needs. This book determines the extent to which EPA has evaluated demand for IRIS toxicity assessments from users inside and outside EPA; EPA's process for nominating and selecting chemicals for IRIS toxicity assessment and strategies for addressing any unmet agency needs when IRIS toxicity assessments are not available, applicable, or current.
Download or read book Advisory on EPA s Assessments of Carcinogenic Effects of Organic and Inorganic Arsenic written by Genevieve Matanoski and published by . This book was released on 2007 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic Research and Global Sustainability written by Prosun Bhattacharya and published by CRC Press. This book was released on 2016-06-08 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with considerable societal impact. The congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia, Spain, As2010 in Tainan, Taiwan, As2012 in Cairns, Australia and As2014 in Buenos Aires, Argentina. The 6th International Congress As2016 was held June 19-23, 2016 in Stockholm, Sweden and was entitled Arsenic Research and Global Sustainability. The Congress addressed the broader context of arsenic research along the following themes: Theme 1: Arsenic in Environmental Matrices and Interactions (Air, Water, Soil and Biological Matrices) Theme 2: Arsenic in Food Chain Theme 3: Arsenic and Health Theme 4: Clean Water Technology for Control of Arsenic Theme 5: Societal issues, Policy Studies, Mitigation and Management Long term exposure to low-to-medium levels of arsenic via contaminated food and drinking water can have a serious impact on human health and globally, more than 100 million people are at risk. Since the end of the 20th century, arsenic in drinking water (mainly groundwater) has emerged as a global health concern. In the past decade, the presence of arsenic in plant foods – especially rice – has gained increasing attention. In the Nordic countries in particular, the use of water-soluble inorganic arsenic chemicals (e.g. chromated copper arsenate, CCA) as wood preservatives and the mining of sulfidic ores have been flagged as health concern. The issue has been accentuated by discoveries of naturally occurring arsenic in groundwater, primarily in the private wells, in parts of the Fennoscandian Shield and in sedimentary formations, with potentially detrimental effects on public health. Sweden has been at the forefront of research on the health effects of arsenic, technological solutions for arsenic removal, and sustainable mitigation measures for developing countries. Hosting this Congress in Sweden was also relevant because historically Sweden has been one of the leading producer of As2O3 and its emission from the smelting industries in northern Sweden and has successfully implemented actions to reduce the industrial emissions of arsenic as well as minimizing the use of materials and products containing arsenic in since 1977. The Congress has gathered professionals involved in different segments of interdisciplinary research in an open forum, and strengthened relations between academia, industry, research laboratories, government agencies and the private sector to share an optimal atmosphere for exchange of knowledge, discoveries and discussions about the problem of arsenic in the environment and catalyze the knowledge generation and innovations at a policy context to achieve the goals for post 2015 Sustainable Development.
Download or read book Arsenic in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 1999-07-14 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (EPA) has been considering a more stringent regulation of arsenic in water. A significant reduction in the maximum contaminant level (MCL) could increase compliance costs for water utilities. This book discusses the adequacy of the current EPA MCL for protecting human health in the context of stated EPA policy and provides an unbiased scientific basis for deriving the arsenic standard for drinking water and surface water. Arsenic in Drinking Water evaluates epidemiological data on the carcinogenic and noncarcinogenic health effects of arsenic exposure of Taiwanese populations and compares those effects with the effects of arsenic exposure demonstrated in other countriesâ€"including the United States. The book also reviews data on toxicokinetics, metabolism, and mechanism and mode of action of arsenic to ascertain how these data could assist in assessing human health risks from arsenic exposures. This volume recommends specific changes to improve the toxicity analyses and risk characterization. The implications of the changes for EPA's current MCL for arsenic are also described.
