Download or read book Speciation of Arsenic in Water and Biological Matrices written by X. Chris Le and published by American Water Works Association. This book was released on 2001 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Analysis by the U S Geological Survey National Water Quality Laboratory written by John R. Garbarino and published by . This book was released on 2002 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Hyphenated Analytical Techniques for Arsenic Speciation in Environmental and Biological Matrices written by Sunanta Wangkarn and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic in Ground Water written by Alan H. Welch and published by Springer Science & Business Media. This book was released on 2003 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consolidates much of what is known about the geochemistry of arsenic and provides new information on relationships between high concentrations of arsenic in ground water and geochemical environments. The subject matter of this book ranges in scope from molecular-scale geochemical processes that affect the mobility of arsenic in ground water, to arsenic contaminated ground water at the national scale. Chapters were contributed by an international group of research scientists from a broad range of backgrounds.
Download or read book Arsenic in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 2001-12-26 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having safe drinking water is important to all Americans. The Environmental Protection Agency's decision in the summer of 2001 to delay implementing a new, more stringent standard for the maximum allowable level for arsenic in drinking water generated a great deal of criticism and controversy. Ultimately at issue were newer data on arsenic beyond those that had been examined in a 1999 National Research Council report. EPA asked the National Research Council for an evaluation of the new data available. The committee's analyses and conclusions are presented in Arsenic in Drinking Water: 2001 Update. New epidemiological studies are critically evaluated, as are new experimental data that provide information on how and at what level arsenic in drinking water can lead to cancer. The report's findings are consistent with those of the 1999 report that found high risks of cancer at the previous federal standard of 50 parts per billion. In fact, the new report concludes that men and women who consume water containing 3 parts per billion of arsenic daily have about a 1 in 1,000 increased risk of developing bladder or lung cancer during their lifetime.
Download or read book Managing Arsenic in the Environment written by Ravi Naidu and published by CSIRO PUBLISHING. This book was released on 2006-02-07 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic is one of the most toxic and carcinogenic elements in the environment. This book brings together the current knowledge on arsenic contamination worldwide, reviewing the field, highlighting common themes and pointing to key areas needing future research. Contributions discuss methods for accurate identification and quantification of individual arsenic species in a range of environmental and biological matrices and give an overview of the environmental chemistry of arsenic. Next, chapters deal with the dynamics of arsenic in groundwater and aspects of arsenic in soils and plants, including plant uptake studies, effects on crop quality and yield, and the corresponding food chain and human health issues associated with these exposure pathways. These concerns are coupled with the challenge to develop efficient, cost effective risk management and remediation strategies: recent technological advances are described and assessed, including the use of adsorbants, photo-oxidation, bioremediation and electrokinetic remediation. The book concludes with eleven detailed regional perspectives of the extent and severity of arsenic contamination from around the world. It will be invaluable for arsenic researchers as well as environmental scientists and environmental chemists, toxicologists, medical scientists, and statutory authorities seeking an in-depth view of the issues surrounding this toxin.
Download or read book Development of an Arsenic Speciation Method for Drinking Water and Its Application to Human Health and Risk Assessment written by Lisveth V. Flores del Pino and published by . This book was released on 2003 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic Speciation and Toxicity in Biological Systems written by Kazi Farzana Akter and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic contamination of groundwater has been reported in over 20 countries worldwide where tens of millions of people are being exposed to excessive levels of arsenic in their drinking water, especially in countries of the Asian region, Bangladesh in particular. This study focusses on analytical techniques currently used for the estimation and speciation of arsenic in aqueous phase (soil and water) and in plant tissues; the uptake of arsenic by two commonly used vegetable crops (amaranth and silverbeet) using solution culture and pot culture studies; speciation-toxicity relationship of arsenic to plants; the nature of arsenic species in plant tissue and Bangladesh groundwater samples; and the effect of iron (Fe) on arsenic (As) uptake by plants and animals.
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.
Download or read book Arsenic Geochemistry written by Darrell Kirk Nordstrom and published by CRC Press. This book was released on 2015-01-15 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an overview of arsenic in the environment emphasizing geochemistry. It covers arsenic in rocks, minerals, soils and sediments, surface and ground waters, vegetation, analytical chemistry, with a short section on toxicology and epidemiology, and case histories in about 50 countries.
Download or read book Arsenic Speciation in Algae written by and published by Elsevier. This book was released on 2019-06-07 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arsenic Speciation in Algae, Volume 85, addresses the most important issues to consider during arsenic speciation in algae, including new sections on Occurrence, distribution, and significance of arsenic speciation, Biogeochemistry of arsenic in aquatic environments: the role of speciation, Sampling and sampling processing: fit for purpose techniques, Separation methods applied to arsenic speciation, Detection and quantification of arsenic compounds, Analytical approaches for proteomics and lipidomics of arsenic in algae, Quality control and quality assurance issues in arsenic speciation, Arsenic speciation in algae: case studies in Europe, and more. Features the latest content combined with the experience of our distinguished contributors
Download or read book Field Speciation Method for Arsenic Inorganic Species written by Dennis A. Clifford and published by International Water Assn. This book was released on 2005-01-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic arsenic (As) in drinking water is considered a human carcinogen with multiple sites of attack. There are numerous reports in the literature, based on past and ongoing experience in various countries in Asia and South America concerning the higher risks of skin, bladder, lung, liver, and kidney cancer that result from continued consumption of elevated levels of arsenic in drinking water. In ground waters, only inorganic arsenic in the form of arsenite [As III] and arsenate [As V] are significant. As III is much more toxic than As V. Moreover, due to the anionic character of As V in the drinking water, As V can be removed more easily than As III. Arsenic speciation of water samples changes over time, specifically, during transportation of samples to the laboratory and storage of samples for analysis due to redox reactions and photochemical oxidation. But, it is important to know the exact concentrations of the arsenic species in the drinking water at the source in order to develop proper treatment strategies, and for epidemiological studies. Therefore, arsenic-containing waters must be speciated immediately in the field or preserved for later speciation in the laboratory. Currently, there is no generally accepted (standard) method for field speciation or for preservation. This study describes the development of a reliable field-speciation method for inorganic arsenic species, and compares the new method with a recently developed USEPA preservation method.
Download or read book Arsenic in the Aquatic Environment Speciation and Biological Effects written by L. Landner and published by . This book was released on 1998 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic Speciation Detection and Quantification in Drinking Water Using High Performance Liquid Chromatography and Inductively Coupled Plasma Mass Spectrometry written by Brittany A. Almassalkhi and published by . This book was released on 2009 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary approach for the analysis of drinking water for heavy metals is through the United States Environmental Protection Agency's Methods 200.7 and 200.8 for Inductively Coupled Plasma Optical Emission Spectroscopy and Inductively Coupled Plasma Mass Spectroscopy, respectively. One of the most prominent heavy metals that has been of focus, and led to a decrease in the maximum contaminate level for drinking water, is total arsenic. It is, however, important to quantify the levels of each arsenic species in drinking water due to their different toxicities. In this study, a routine method to test, separate, and thereby quantify both the organic and inorganic arsenic species in real world samples was accomplished. Specifically four arsenic species: arsenite, arsenate, monomethylarsonate, and dimethylarsinate were separated in under six minutes through the use of ion-pairing reverse phase chromatography hyphenated with inductively coupled plasma mass spectrometry. Using tetrabutylammonium hydroxide as the ion-pairing reagent on a C18 column, the separation was obtained and utilized with real world samples that were tested and quantified.
Download or read book Arsenic Speciation Techniques in Soil Water and Plant written by Mohammed Zia Uddin Kamal and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are more than 100 different arsenic with different characteristics in the soil-water-plant ecosystem. The identification and quantification of individual arsenic species is essential for understanding the distribution, environmental fate and behavior, metabolism and toxicity of arsenic. Due to the hazardous nature of arsenic, people have a high interest in the measurement of arsenic species. The reaction of the formation of arsenic speciation in the soil-water-plant environment is briefly studied. There is little information on methods used to quantify arsenic forms and species in contaminated soil, water and plant. The purpose of this article is to understand the available sample pretreatment, extraction, separation, detection and method validation techniques for arsenic speciation analysis of arsenic species in soil, water and plant. The performances of various sample preparation and extraction processes, as well as effective separation techniques, that contribute greatly to excellent sensitivity and selectivity in arsenic speciation when coupling with suitable detection mode, and method validity are discussed. The outlines of arsenic speciation techniques are discussed in view of the importance to the completeness and accuracy of analytical data in the soil-water-plant samples. To develop cheap, fast, sensitive, and reproducible techniques with low detection limits, still needed to confine research on arsenic speciation present in environmental matrices.
Download or read book Arsenic Speciation Analysis of Biological Fluids written by Kanna Ito and published by . This book was released on 2010 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic written by Robert Bowell and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-11-21 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Mineralogy and Bio-Geochemistry of Arsenic provides a comprehensive understanding of arsenic geochemistry in the near-surface environment. Topics covered include the mineralogy, thermodynamics, geochemistry, analysis, microbiology, and bioavailability of arsenic, with emphasis on implications for arsenic toxicity, geochemistry in natural ground waters, and mine-associated impacts and possible mitigation options. This volume is useful for those seeking to understand arsenic geochemistry and biological interactions in the near-surface environment, Clay Minerals does not use an online manuscript tracking/submission system. as well those working for mining companies, the chemicals industry, NGO’s or government bodies concerned with reducing the impact of arsenic on the environment.
