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Author : A. Dennis Lemly
Publisher : Unknown
Page : 20 pages
File Size : 50,5 Mb
Release : 1987
Category : Animals
ISBN : STANFORD:36105112102921
Author : A. Dennis Lemly
Publisher : Springer Science & Business Media
Page : 162 pages
File Size : 41,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461300731
Selenium is a naturally occurring trace element that can become concentrated and released by industrial, agricultural, petrochemical and mining activities. At concentrated levels it is toxic and has polluted ecosystems around the world. This book will serve as a comprehensive practical handbook for everyone dealing with selenium in aquatic environments. It offers field-tested approaches and methods for assessment and water quality management. Using his twenty-year experience, the author discusses the effects of selenium on fish and bird populations and presents guidelines for identifying sources of pollution, interpreting selenium concentrations, assessing hazardous conditions, setting water quality criteria and ecosystem loading limits (TMDLs). He also includes a procedure for setting environmentally safe limits that ensure compliance with EPA regulations. Selenium Assessment in Aquatic Ecosystems will interest field scientists, natural resource managers, risk assessors and environmental planners.
Author : Peter M. Chapman,William J. Adams,Marjorie Brooks,Charles G. Delos,Samuel N. Luoma,William A. Maher,Harry M. Ohlendorf,Theresa S. Presser,Patrick Shaw
Publisher : CRC Press
Page : 368 pages
File Size : 41,9 Mb
Release : 2010-05-06
Category : Science
ISBN : 9781439826782
Based on the work and contributions of 46 scientists, managers, and policymakers, Ecological Assessment of Selenium in the Aquatic Environment documents the state of the science and explores how to use this information when assessing and managing the environmental effects of Se. A focused discussion on the fate and effects of Se in aquatic ecosystems, the book reviews: Past and current problems related to Se in aquatic environments, together with lessons learned, and provides a generalized conceptual model Environmental partitioning, in particular Se speciation leading to its entry into the food chain, and provides conceptual models specific to environmental partitioning. Se bioaccumulation and trophic transfer from the physical environment (i.e., water-column particulates), and from primary producers to herbivores to carnivores, including the influence of modifying ecological factors Toxic effects from Se, in particular body burdens and their relationship to toxicity Filled with practical guidance and concise information on how to conduct selenium risk assessments in the aquatic environment, the book contains the latest information on assessment techniques, elucidates the current state of contamination in industrialized countries, and raises awareness for developing nations. Written by leading experts, it describes best practices for designing experiments to collect information on aquatic effects and trophic transfer of selenium for risk assessments, presents numerous case studies both domestic and international, and gives insight as to how current and future ecosystems may or may not be affected.
Author : Anonim
Publisher : Unknown
Page : 16 pages
File Size : 50,7 Mb
Release : 1984
Category : Fish habitat improvement
ISBN : MINN:30000007197977
Author : Ronald Charles Severson,Scott Fisher,L. P. Gough
Publisher : Unknown
Page : 156 pages
File Size : 46,7 Mb
Release : 1991
Category : Geology
ISBN : OSU:32435062556212
Author : J.R. Hein
Publisher : Elsevier
Page : 662 pages
File Size : 49,8 Mb
Release : 2003-12-18
Category : Science
ISBN : 9780080535487
Geological, geoenvironmental, and resource studies were completed to study a world-class phosphate ore in the Western US Phosphate Field. This integrated, multi-agency, multidisciplinary research emphasized: (1) Geological and geochemical baseline characterization of the deposit and associated rocks, (2) Delineation, assessment, and spatial analysis of phosphate resources and lands disturbed by mining, (3) Contaminant residence, reaction pathways, and environmental fate associated with the occurrence, development, and use of phosphate rock, and (4) Depositional origin and evolution of the Phosphoria Formation and deposit and geoenvironmental modeling.
Author : James P. Meador
Publisher : CRC Press
Page : 516 pages
File Size : 50,9 Mb
Release : 1996-03-20
Category : Science
ISBN : 156670071X
Many books have been written about the effects of toxic chemicals on wildlife, but none has focused on the practical question, "How much of a chemical in the tissues of an animal is harmful?" This book deals exclusively with that question. This comprehensive reference will certainly become the standard resource on the topic, offering authoritative and sound advice on many environmental contaminants. With chapters written by outstanding experts in their respective fields, this is not only a scholarly collection of discussions on different chemicals, but, for those who have the day-to-day task of evaluating the harm of environment contaminants to wildlife, this book will provide answers on, for example, how to interpret 1 ppm lead in the liver of a duck or fish. The authors explain the snags of interpreting data that are sometimes conflicting or insufficient, providing the reader with helpful advice on how to cope with such data. Each chapter reviews literature on a specific chemical, followed by a easy-to-understand summary providing technical guidance. For many years this book will remain the preeminent reference on how to interpret contaminant levels of organochlorine pesticides, PCBs, dioxins, PAHs, metals, selenium, and fluorides in wildlife.
Author : Pooja Devi,Pardeep Singh,Arindam Malakar,Daniel Snow
Publisher : John Wiley & Sons
Page : 436 pages
File Size : 48,8 Mb
Release : 2021-05-12
Category : Technology & Engineering
ISBN : 9781119693543
The contamination of environment and water resources by Selenium (Se) and its oxyanions from various sources are emerging contaminants of significant health and environmental concern. The primary sources include agricultural drainage water, mine drainage, residues from fossil fuels, thermoelectric power plants, oil refineries, and metal ores. Various methods and technologies have been developed which focus on the treatment of selenium-containing waters and wastewater. High concentrations of selenium in water cause various adverse impact to human health, such as carcinogenic, genotoxic, and cytotoxic effects. But in the lower concentrations, it is a useful constituent of the biological system. The range between toxicity and deficiency of selenium is minimal (40 to 400 μg per day), due to its dual nature. Selenium Contamination in Water contains the latest status and information on selenium’s origin, its chemistry and its toxicity to humans. The book represents a comprehensive and advanced reference book for students, researchers, practitioners, and policymakers in working in the field of metalloids, in particular selenium. A special emphasis is given on its geological distribution, monitoring techniques, and remedial technologies. As such, the authors critically analyze the various techniques used for the monitoring and removal of selenium from water. Featuring chapters arranged according to the major themes of the latest research, with specific case-studies from industrial experiences of selenium detection and removal, Selenium Contamination in Water will be particularly valued by researchers, practitioners, and policymakers in working in the field of metalloids including selenium.
Author : Anonim
Publisher : Unknown
Page : 678 pages
File Size : 44,9 Mb
Release : 1984
Category : Geology
ISBN : MINN:31951P001664276
Author : Ronald Charles Severson,Scott Fisher,L. P. Gough
Publisher : Unknown
Page : 458 pages
File Size : 47,5 Mb
Release : 1984
Category : Administrative agencies
ISBN : OSU:32435030454524
Explanation of eruptions, lava flows and glacier melting on Redoubt Volcano on the west shore of Cook Inlet, southern Alaska, near Anchorage in 1989 and 1990.
Author : United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Water and Wildlife
Publisher : Unknown
Page : 556 pages
File Size : 44,9 Mb
Release : 2015
Category : Appalachian Region
ISBN : STANFORD:36105050693550
Author : Anonim
Publisher : Unknown
Page : 76 pages
File Size : 49,5 Mb
Release : 2001
Category : Hydrology
ISBN : MINN:31951D02081617H
Author : Anonim
Publisher : Unknown
Page : 288 pages
File Size : 43,6 Mb
Release : 1998
Category : Selenium
ISBN : UCR:31210025590264
Author : James R. Bartolino
Publisher : Unknown
Page : 104 pages
File Size : 51,9 Mb
Release : 1996
Category : Agricultural pollution
ISBN : UCR:31210010529533
Author : David Louis Butler,Barbara Campbell Osmundson,Richard P. Krueger
Publisher : Unknown
Page : 52 pages
File Size : 53,5 Mb
Release : 1997
Category : Dolores Project (U.S.)
ISBN : UCR:31210011112370