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Author:
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Category : Chesapeake Bay (Md. and Va.)
Languages : en
Pages : 130
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Book Description
Author:
Publisher:
ISBN:
Category : Chesapeake Bay (Md. and Va.)
Languages : en
Pages : 130
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172683
Category : Nature
Languages : en
Pages : 569
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Book Description
In 1997, New York City adopted a mammoth watershed agreement to protect its drinking water and avoid filtration of its large upstate surface water supply. Shortly thereafter, the NRC began an analysis of the agreement's scientific validity. The resulting book finds New York City's watershed agreement to be a good template for proactive watershed management that, if properly implemented, will maintain high water quality. However, it cautions that the agreement is not a guarantee of permanent filtration avoidance because of changing regulations, uncertainties regarding pollution sources, advances in treatment technologies, and natural variations in watershed conditions. The book recommends that New York City place its highest priority on pathogenic microorganisms in the watershed and direct its resources toward improving methods for detecting pathogens, understanding pathogen transport and fate, and demonstrating that best management practices will remove pathogens. Other recommendations, which are broadly applicable to surface water supplies across the country, target buffer zones, stormwater management, water quality monitoring, and effluent trading.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069483
Category : Science
Languages : en
Pages : 422
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Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Author:
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Category : Nonpoint source pollution
Languages : en
Pages : 538
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Author: David Letson
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 24
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Author:
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Category : Agricultural conservation
Languages : en
Pages : 316
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Book Description
Author: Meta Systems Inc
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 372
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Author:
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Category : Environmental monitoring
Languages : en
Pages : 520
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Author: Robert E. Thronson
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ISBN:
Category : Agricultural pollution
Languages : en
Pages : 152
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Author: Arun S. Malik
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 20
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