Trace Elements and Organic Compounds in Streambed Sediment and Fish Tissue of Coastal New England Streams, 1998-99 PDF Download
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Author: Ann Thomas Chalmers
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 42
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Book Description
Author: Ann Thomas Chalmers
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 42
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Book Description
Author: L. R. Shelton
Publisher:
ISBN:
Category : Organic water pollutants
Languages : en
Pages : 32
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Book Description
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 70
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Book Description
Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 88
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Book Description
Author: Barbara C. Scudder
Publisher: DIANE Publishing
ISBN: 1437921132
Category : Science
Languages : en
Pages : 86
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Book Description
Report on how mercury (Hg) was examined in top-predator fish, bed sediment, and water from streams that spanned regional and national gradients of Hg source strength and other factors thought to influence methylmercury bioaccum. Sampled settings include stream basins that were agr¿l, urbanized, undeveloped, and mined. Predator fish were targeted for collection, and composited samples of fish were analyzed for total Hg (THg), as most of the Hg found in fish tissue is MeHg. Samples of bed sediment and stream water were analyzed for THg, MeHg, and characteristics thought to affect Hg methylation, such as loss-on-ignition and acid-volatile sulfide in bed sediment, and pH, dissolved organic carbon, and dissolved sulfate in water. Illus.
Author:
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Category : Contaminated sediments
Languages : en
Pages : 70
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Author:
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 416
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Book Description
Author:
Publisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 298
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 720
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Book Description
Author: H. John Heinz III Center for Science, Economics, and the Environment
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 372
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Book Description
Revised and updated periodically, The State of the Nation's Ecosystems is widely recognized as America's most comprehensive report on the condition of our lands, waters, and living resources. Like the acclaimed first edition, this second edition provides nonpartisan, scientifically reliable information for policymakers, scientists, journalists, and anyone who is interested in the state of America's environment. The State of the Nation's Ecosystems provides a way to "take the pulse" of America's environment. It is organized around the nation's primary ecosystems: farmlands, forests, fresh waters, coasts and oceans, grasslands and shrublands, urban and suburban areas, and the nation as a whole. For each, it identifies what should be measured, counted, and reported so that decision makers and others can understand the changes that are occurring, set priorities for action, and measure whether we are achieving our environmental goals. Conditions are tracked using approximately 100 indicators, agreed upon by hundreds of experts from universities, government agencies, corporations, and environmental organizations. The new report refines the set of indicators and supplies data. Until its publication, there was no environmental equivalent to the kind of "key economic indicators" that help to gauge the economic health of the nation, like gross domestic product. The State of the Nation's Ecosystems provides our first set of "key environmental indicators." It won't eliminate differences of opinion about environmental policy, but it will provide a common set of data to inform the debate as well as a common yardstick for measuring the effectiveness of our actions. Most importantly, it will provide much-needed assistance in setting our future agenda.
