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Author:
Publisher: DIANE Publishing
ISBN: 1422330028
Category : Arsenic
Languages : en
Pages : 164
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Book Description
Author:
Publisher: DIANE Publishing
ISBN: 1422330028
Category : Arsenic
Languages : en
Pages : 164
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Book Description
Author: Prosun Bhattacharya
Publisher: IWA Publishing
ISBN: 1843393859
Category : Science
Languages : en
Pages : 308
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Book Description
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.
Author: Frederick Jr Rubel
Publisher:
ISBN:
Category : Aluminum oxide
Languages : en
Pages : 80
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Book Description
Author: Dennis A. Clifford
Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 8
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Book Description
Author: M. Feroze Ahmed
Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 298
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Book Description
Includes some papers with reference to Bangladesh and India.
Author: Phyllis Frank
Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 86
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Book Description
Author: Bryan Black
Publisher: American Water Works Association
ISBN: 158321058X
Category : Arsenic
Languages : en
Pages : 90
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Book Description
The recently lowered arsenic maximum contaminant level (MCL) presents new challenges in the monitoring and treatment capabilities of drinking water utilities. This report provides advice to utilities and consultants as they monitor, make treatment modifications to control arsenic, and explain arsenic issues to the public. It overviews research on arsenic in drinking water with respect to health issues, occurrence, monitoring and treatment, and reviews the major treatment processescoagulation, lime softening, iron-manganese removal, ion exchange, activated alumina, reverse osmosis, nanofiltration, and augmented micro- or ultrafiltration. No index. Member price, $85. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Author: Riccardo A. A. Muzzarelli
Publisher: Elsevier
ISBN: 1483159469
Category : Science
Languages : en
Pages : 326
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Book Description
Chitin presents fundamental information on chitin. The enzymatic processes controlling the synthesis and the breakdown of chitin are discussed, along with its role in the fundamental mechanism of growth, differentiation, nutrition, and movement of a large number of species. This text consists of seven chapters and begins with an overview of chitin research and the rapidly increasing interest in chitin chemistry and applications. The discussion then moves to the enzymatic synthesis of chitin and chitosan and inhibition of chitin biosynthesis, along with the physicochemical characteristics of chitin and chitosan. The chapters that follow focus on chitin chemistry, chitinases and related enzymes, applications of chitin in chromatography, and industrial production and applications of chitin. The final chapter is devoted to medical applications of chitin and its oligomers, from being artificial kidney membranes and antigens against parasites to blood anticoagulants, biodegradable pharmaceutical carriers, wound healing accelerators, and microbiological media. This book will be of interest to biochemists, physicists, industrialists, botanists, entomologists, physiologists, and other scientists in a variety of disciplines, as well as graduate students wishing to undertake research about chitin.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309076293
Category : Nature
Languages : en
Pages : 242
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Book Description
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.
Author: Tatiana Bianchelli
Publisher:
ISBN: 9781590337233
Category : Water
Languages : en
Pages : 0
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Book Description
Arsenic is a widely distributed, naturally occurring element in the Earth's crust and is present in trace amounts in all living organisms. Higher levels of arsenic tend to be found more frequently in ground water than in surface water. Because small water systems typically rely on wells for drinking water, while the largest systems typically rely on surface-water sources, arsenic tends to occur in higher levels more often in water used by small communities. In the United States, the average level measured in ground-water samples is less than or equal to 1 part per billion; however, higher levels are not uncommon. Compared to the rest of the United States, Western states have more water systems with levels exceeding 10 ppb, and levels exceed 50 ppb in some locations. Parts of the Midwest and New England also have some water systems with arsenic levels exceeding 10 ppb, but most systems have lower levels. EPA projects that 5.5% of water systems, serving 11 million people, are likely to exceed the 10 ppb level. Sources of arsenic in water include natural sources, and releases from its use as a wood preservative, in semi-conductors and paints, and from agriculture and mining. A question of ongoing scientific debate concerned whether significant adverse health effects occur from ingesting arsenic at very low levels. This book reviews EPA efforts to develop a new arsenic rule and summarises key provisions and subsequent events. Included are different ways of actually removing the arsenic and maintaining the healthy level that is required by the EPA.
