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Author : N. K. Nagpal,British Columbia. Water Management Branch
Publisher : Water Management Branch
Page : 15 pages
File Size : 44,9 Mb
Release : 2001-01-01
Category : Mercury
ISBN : 0772644748
Author : D. R. J. Moore,A. Pawlisz,R. S. Teed
Publisher : IWA Publishing
Page : 184 pages
File Size : 48,5 Mb
Release : 2003-07-31
Category : Science
ISBN : 9781843396376
This project examined the development of ambient water quality criteria (AWQC) for the protection of wildlife for mercury. Mercury is considered a serious risk to wildlife in many areas. As a result, the Great Lakes Water Quality Initiative and others have developed AWQC. These AWQC have been controversial, however, because (1) the AWQC were single values that did not account for site-specific conditions; (2) derivation of the AWQC relied on a single NOAEL, and (3) the AWQC had an unknown level of conservatism because of reliance on both average and conservative assumptions and uncertainty factors. Rather than develop a single value AWQC for total mercury, we derive an AWQC model that explicitly incorporates factors controlling bioavailability, methylation rates and bioaccumulation in the aquatic environment (e.g., pH, DOC, sulfate). To derive our AWQC model, field data was collected including numerous water quality parameters and total mercury and methylmercury concentrations in whole body fish tissue from 31 lakes in Ontario and an additional 10 lakes in Nova Scotia. An independent dataset consisting of 51 water bodies in the United States was then used to confirm the validity and robustness of the AWQC model. Next we combined the results of chronic-feeding studies with similar protocols and endpoints, in a meta-analysis to derive a dose-response curve for mink exposed to mercury in the diet. Using this approach, one can derive an LD5 or other similar endpoint that can then be used as the basis for deriving -wildlife AWQC. In the final step, we used a probabilistic risk model to estimate the concentrations of methylmercury in water that would lead to levels in fish sufficient for there to be a 10% probability of exceeding the mink LD5. This analysis was repeated for various combinations of pH and DOC. The result is an AWQC model for mercury for the protection of wildlife that can be used for a variety of site-specific conditions. This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Author : N. K. Nagpal,British Columbia. Water Management Branch
Publisher : Unknown
Page : 15 pages
File Size : 54,6 Mb
Release : 2001
Category : Mercury
ISBN : OCLC:46855893
Author : United States Environmental Protection Agency (EPA)
Publisher : Createspace Independent Publishing Platform
Page : 144 pages
File Size : 51,5 Mb
Release : 2018-07-25
Category : Electronic
ISBN : 172422350X
Ambient Water Quality Criteria for Mercury
Author : Canada. Dept. of the Environment.National Guidelines and Standards Office
Publisher : Unknown
Page : 118 pages
File Size : 52,6 Mb
Release : 2003
Category : Electronic
ISBN : OCLC:874211922
Author : Dwayne Robert James Moore
Publisher : Unknown
Page : 200 pages
File Size : 48,7 Mb
Release : 2003-01-01
Category : Mercury
ISBN : 1893664880
Author : United States. Environmental Protection Agency. Office of Water Regulations and Standards
Publisher : Unknown
Page : 456 pages
File Size : 41,5 Mb
Release : 1986
Category : Water
ISBN : MINN:31951D00766818X
Section 304(a) (1) of the Clean Water Act 33 U.S.C. 1314(a) (1) requires the Environmental Protection Agency (EPA) to publish and periodically update ambient water quality criteria. These criteria are to accurately reflect the latest scientific knowledge (a) on the kind and extent of all identifiable effects on health and welfare including, but not limited to, plankton, fish shellfish, wildlife, plant life, shorelines, beaches, aesthetics, and recreation which may be expected from the presence of pollutants in any body of water including ground water; (b) on the concentration and dispersal of pollutants, or their byproducts, through biological, physical, and chemical processes; and (c) on the effects of pollutants on biological community diversity, productivity, and stability, including information on the factors affecting rates of eutrophication and organic and inorganic sedimentation for varying types of receiving waters. In a continuing effort to provide those who use EPA's water quality and human health criteria with up-to-date criteria values and associated information, the document was assembled. The document includes summaries of all the contaminants for which EPA has developed criteria recommendations.
Author : Anonim
Publisher : Unknown
Page : 834 pages
File Size : 47,5 Mb
Release : 1979
Category : Chemicals
ISBN : CORNELL:31924063114759
Author : World Health Organization
Publisher : World Health Organization
Page : 260 pages
File Size : 55,7 Mb
Release : 1993
Category : Medical
ISBN : 9241545038
This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.
Author : Geneviève M. Carr,James P. Neary
Publisher : UNEP/Earthprint
Page : 132 pages
File Size : 44,6 Mb
Release : 2008
Category : Business & Economics
ISBN : 9295039513
This document is intended to provide an overview of the major components of surface and ground water quality and how these relate to ecosystem and human health. Local, regional and global assessments of water quality monitoring data are used to illustrate key features of aquatic environments, and to demonstrate how human activities on the landscape can influence water quality in both positive and negative ways. Clear and concise background knowledge on water quality can serve to support other water assessments.
Author : Anonim
Publisher : World Bank Publications
Page : 474 pages
File Size : 52,8 Mb
Release : 1999
Category : Factory and trade waste
ISBN : 082133638X
"Originally developed to help staff, clients, and consultants prepare and implement operations supported by the Bank Group, this Handbook updates and replaces the Environmental Guidelines issued in 1988 and reflects changes both in technology and in pollution management policies and practices. It focuses attention on the environmental and economic benefits of preventing pollution and emphasizes cleaner production and good management techniques."--BOOK JACKET.
Author : United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division
Publisher : Unknown
Page : 228 pages
File Size : 45,5 Mb
Release : 1980
Category : Mercury
ISBN : UCR:31210012772362
Author : John Burke Sullivan,Gary R. Krieger
Publisher : Lippincott Williams & Wilkins
Page : 1348 pages
File Size : 54,7 Mb
Release : 2001
Category : Medical
ISBN : 068308027X
Now in its revised and updated Second Edition, this volume is the most comprehensive and authoritative text in the rapidly evolving field of environmental toxicology. The book provides the objective information that health professionals need to prevent environmental health problems, plan for emergencies, and evaluate toxic exposures in patients.Coverage includes safety, regulatory, and legal issues; clinical toxicology of specific organ systems; emergency medical response to hazardous materials releases; and hazards of specific industries and locations. Nearly half of the book examines all known toxins and environmental health hazards. A Brandon-Hill recommended title.
Author : Anonim
Publisher : Unknown
Page : 514 pages
File Size : 40,5 Mb
Release : 1980
Category : Electronic
ISBN : CORNELL:31924056585981
Author : Anonim
Publisher : Unknown
Page : 386 pages
File Size : 44,9 Mb
Release : 1998
Category : Water quality
ISBN : UCR:31210024932517