Natural Arsenic In Groundwater PDF Download

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Natural Arsenic In Groundwater PDF full book. Access full book title Natural Arsenic In Groundwater.

Arsenic in Drinking Water

Arsenic in Drinking Water
Author: National Research Council
Publisher: National Academies Press
Total Pages: 242
Release: 2001-12-26
Genre: Nature
ISBN: 0309076293

Download Arsenic in Drinking Water Book in PDF, ePub and Kindle

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.


Natural Arsenic in Groundwaters of Latin America

Natural Arsenic in Groundwaters of Latin America
Author: Jochen Bundschuh
Publisher: CRC Press
Total Pages: 784
Release: 2008-09-23
Genre: Science
ISBN: 0415407710

Download Natural Arsenic in Groundwaters of Latin America Book in PDF, ePub and Kindle

Groundwater resources naturally contain high levels of arsenic in many parts of the world. Over the last two decades, the As-containing groundwater in South-East Asia has received much attention, but the situation is just as crucial in Latin America, where the number of studies is still relatively low, and the extent and severity of As-exposure in the populations has yet to be fully evaluated. This book aims to promote knowledge of the occurrence and genesis of As-rich groundwater in Latin America. It deals with constraints on the mobility of As in groundwater, As-uptake from soil and water by plants, As-propagation through the food chain, human health impacts, and As-removal technologies. Case studies are presented from Argentina, Bolivia, Chile, Ecuador, El Salvador, Mexico, Nicaragua and Peru, amongst others, and are viewed against the background of experience from other world regions. The book is a state-of-art overview of arsenic research in Latin America. It aims to create interest within the Latin American countries affected by the presence of arseniferous aquifers and to increase awareness among administrators, policy makers and company executives. It will also serve to inform the international scientific community, and improve international cooperation on arsenic in groundwater.


Arsenic in Ground Water

Arsenic in Ground Water
Author: Alan H. Welch
Publisher: Springer Science & Business Media
Total Pages: 476
Release: 2007-05-08
Genre: Science
ISBN: 0306479567

Download Arsenic in Ground Water Book in PDF, ePub and Kindle

Interest in arsenic in ground water has greatly increased in the past decade because of the increased awareness of human health effects and the costs of avoidance or treatment of ground water supplies used for consumption. The goal of this book is to provide a description of the basic processes that affect arsenic occurrence and transport by providing sufficient background information on arsenic geochemistry and descriptions of hi- arsenic ground water, both affected and unaffected by human activity. An understanding of thermodynamics, adsorption, and the speciation of arsenic in solid phases, which are described in first three chapters, is needed to predict the fate of arsenic in ground water systems. Large-scale and deep movement of ground water can and has redistributed arsenic in the near surface environment, as described in the next two chapters. These large-scale systems can affect large volumes of both ground water and surface water, such as in the Yellowstone system, and can produce mineralised zones that subsequently release arsenic to ground water supplies. Regional identification of high-arsenic ground water and its consumption as described in the next three chapters clearly demonstrates a need for increased wat- quality monitoring, particularly in south and southeast Asia. Chapters 9-11 provide examples of high arsenic ground water associated with sulfide mineral oxidation and alkaline conditions. Finally, smaller scale studies of the effects of human activities that have produced high-arsenic ground water and methods for attenuation of ground water are presented.


Natural Arsenic in Groundwater

Natural Arsenic in Groundwater
Author: J. Bundschuh
Publisher: CRC Press
Total Pages: 356
Release: 2005-01-06
Genre: Technology & Engineering
ISBN: 1134210809

Download Natural Arsenic in Groundwater Book in PDF, ePub and Kindle

Arsenic contamination has become a global phenomenon. With the development of advanced technological detection tools, more geographical areas have been identified. The people most affected are those in the poorer socio-economic groups. The research articles in this book have been contributed by scientists working in areas severely a


Arsenic in Soil and Groundwater Environment

Arsenic in Soil and Groundwater Environment
Author: Prosun Bhattacharya
Publisher: Elsevier
Total Pages: 684
Release: 2007-06-29
Genre: Technology & Engineering
ISBN: 9780080522906

Download Arsenic in Soil and Groundwater Environment Book in PDF, ePub and Kindle

This volume presents the recent developments in the field of arsenic in soil and groundwater. Arranged into nine sections, the text emphasizes the global occurrences of arsenic in the environment, particularly on its source, pathways, behavior, and effects it has on soils, plants, water, animals, and humans. It also covers the diverse issues of arsenic in the mining environment, arsenic emanating from hydrothermal springs, and the geochemical modeling of arsenic adsorption to oxide surfaces. Finally, the text includes different cost effective removal mechanisms of arsenic from drinking water using natural red earth, solar oxidation, and arsenic oxidation by ferrrate. Written in simple English, and few technical terms, the book is designed to create interest within the countries with occurrences of arsenic in drinking water with · an update the current status of knowledge on the dynamics of natural arsenic from the aquifers through groundwater to food chain and efficient techniques for arsenic removal. · serve as a standard text book for graduate, postgraduate students and researchers in the field of Environmental Sciences and Hydrogeochemistry as well as researchers, environmental scientists and chemists, toxicologists, medical scientists and even for general public seeking an in-depth view of arsenic which had been classed as a carcinogen. · bring awareness, among administrators, policy makers and company executives, on the problem and to improve the international cooperation


Arsenic in Groundwater

Arsenic in Groundwater
Author: M. Manzurul Hassan
Publisher: CRC Press
Total Pages: 304
Release: 2016-01-15
Genre: Technology & Engineering
ISBN: 9781439839270

Download Arsenic in Groundwater Book in PDF, ePub and Kindle

Arsenic-contaminated groundwater has created one of the world's largest environmental health crises. This book addresses the arsenic issue within a scientific and social science framework, with the context set by environmental and legal considerations. The text explores the methodological issues of spatial, quantitative, and qualitative enquiries on arsenic poisoning, for instance, using GIS to investigate the distribution of arsenic-laced water in space-time to uncover the pattern of variations over scales from meters to kilometers. The authors also include spatial risk maps that indicate the possible long-term strategies of mitigation.


Arsenic Pollution

Arsenic Pollution
Author: Peter Ravenscroft
Publisher: John Wiley & Sons
Total Pages: 625
Release: 2011-07-26
Genre: Medical
ISBN: 1444355465

Download Arsenic Pollution Book in PDF, ePub and Kindle

Arsenic Pollution summarizes the most current research on the distribution and causes of arsenic pollution, its impact on health and agriculture, and solutions by way of water supply, treatment, and water resource management. Provides the first global and interdisciplinary account of arsenic pollution occurrences Integrates geochemistry, hydrology, agriculture, and water supply and treatment for the first time Options are highlighted for developing alternative water sources and methods for arsenic testing and removal Appeals to specialists in one discipline seeking an overview of the work being done in other disciplines


Some Drinking-water Disinfectants and Contaminants, Including Arsenic

Some Drinking-water Disinfectants and Contaminants, Including Arsenic
Author: IARC Working Group on the Evaluation of Carcinogenic Risks to Humans
Publisher: IARC
Total Pages: 540
Release: 2004
Genre: Medical
ISBN: 9789283212843

Download Some Drinking-water Disinfectants and Contaminants, Including Arsenic Book in PDF, ePub and Kindle

A working group of 23 experts from 13 countries met in Lyon to evaluate the evidence for carcinogenicity of arsenic (mostly naturally occurring) as a contaminant of drinking-water, and of the water-disinfectant chloramine. The working group also evaluated or re-evaluated four chlorination by-products found in drinking-water, namely chloral hydrate, di- and trichloroacetic acids, and 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (also known as MX). High-level exposure to arsenic in drinking-water occurs in some regions such as China, Latin America, Bangladesh and West Bengal. The Working Group reviewed epidemiological studies of human cancer (mainly ecological studies in Taiwan and Chile, and several case-control and cohort studies) in relation to arsenic in drinking-water. Arsenic in drinking-water (primarily inorganic, as arsenate and to a lesser extent arsenite) was evaluated as carcinogenic to humans (Group 1) on the basis of sufficient evidence for an increased risk for cancer of the urinary bladder, lung and skin. Studies on inorganic arsenic in experimental animals provided limited evidence for its carcinogenicity, but sufficient evidence was found in experimental animals for the carcinogenicity of dimethylarsinic acid (an organic form of arsenic), which produced urinary bladder tumours in rats and lung tumours in mice after oral administration.


Best Practice Guide on the Control of Arsenic in Drinking Water

Best Practice Guide on the Control of Arsenic in Drinking Water
Author: Prosun Bhattacharya
Publisher: IWA Publishing
Total Pages: 308
Release: 2017-07-15
Genre: Science
ISBN: 1843393859

Download Best Practice Guide on the Control of Arsenic in Drinking Water Book in PDF, ePub and Kindle

Arsenic in drinking water derived from groundwater is arguably the biggest environmental chemical human health risk known at the present time, with well over 100,000,000 people around the world being exposed. Monitoring the hazard, assessing exposure and health risks and implementing effective remediation are therefore key tasks for organisations and individuals with responsibilities related to the supply of safe, clean drinking water. Best Practice Guide on the Control of Arsenic in Drinking Water, covering aspects of hazard distribution, exposure, health impacts, biomonitoring and remediation, including social and economic issues, is therefore a very timely contribution to disseminating useful knowledge in this area. The volume contains 10 short reviews of key aspects of this issue, supplemented by a further 14 case studies, each of which focusses on a particular area or technological or other practice, and written by leading experts in the field. Detailed selective reference lists provide pointers to more detailed guidance on relevant practice. The volume includes coverage of (i) arsenic hazard in groundwater and exposure routes to humans, including case studies in USA, SE Asia and UK; (ii) health impacts arising from exposure to arsenic in drinking water and biomonitoring approaches; (iii) developments in the nature of regulation of arsenic in drinking water; (iv) sampling and monitoring of arsenic, including novel methodologies; (v) approaches to remediation, particularly in the context of water safety planning, and including case studies from the USA, Italy, Poland and Bangladesh; and (vi) socio-economic aspects of remediation, including non-market valuation methods and local community engagement.


Toxicological Profile for DDT/DDD/DDE (Update)

Toxicological Profile for DDT/DDD/DDE (Update)
Author: Obaid Faroon
Publisher: DIANE Publishing
Total Pages: 497
Release: 2010-08
Genre: Medical
ISBN: 1437930670

Download Toxicological Profile for DDT/DDD/DDE (Update) Book in PDF, ePub and Kindle

DDT is a pesticide that was once widely used to control insects. Both DDD and DDE are breakdown products of DDT. This profile includes: (1) The examination, summary, and interpretation of available toxicologic info. and epidemiologic evaluations on DDT/DDD/DDE to ascertain the levels of significant human exposure for the substance and the associated chronic health effects; (2) A determination of whether adequate info. on the health effects of DDT/DDD/DDE is available to determine levels of exposure that present a significant risk to human health of chronic health effects; and (3) Identification of toxicologic testing needed to identify the types or levels of exposure that may present significant risk of adverse health effects in humans. Illus.