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Author: David K. Mueller
Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 32
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Book Description
Nutrients in water are necessary for productive aquatic ecosystems, but in high concentrations, nutrients such as nitrates, ammonia, and phosphates can adversely affect aquatic life and human health.
Author: David K. Mueller
Publisher:
ISBN:
Category : Nutrient pollution of water
Languages : en
Pages : 32
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Book Description
Nutrients in water are necessary for productive aquatic ecosystems, but in high concentrations, nutrients such as nitrates, ammonia, and phosphates can adversely affect aquatic life and human health.
Author: Mark D. Munn
Publisher: United States Department of the Interior
ISBN: 9781411341838
Category : Nature
Languages : en
Pages : 92
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Book Description
"National Water-Quality Assessment Project."
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069483
Category : Science
Languages : en
Pages : 422
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Book Description
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: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309091586
Category : Medical
Languages : en
Pages : 639
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Book Description
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate The Dietary Reference Intakes (DRIs) are quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people. This new report, the sixth in a series of reports presenting dietary reference values for the intakes of nutrients by Americans and Canadians, establishes nutrient recommendations on water, potassium, and salt for health maintenance and the reduction of chronic disease risk. Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate discusses in detail the role of water, potassium, salt, chloride, and sulfate in human physiology and health. The major findings in this book include the establishment of Adequate Intakes for total water (drinking water, beverages, and food), potassium, sodium, and chloride and the establishment of Tolerable Upper Intake levels for sodium and chloride. The book makes research recommendations for information needed to advance the understanding of human requirements for water and electrolytes, as well as adverse effects associated with the intake of excessive amounts of water, sodium, chloride, potassium, and sulfate. This book will be an invaluable reference for nutritionists, nutrition researchers, and food manufacturers.
Author: Gregory J. Fuhrer
Publisher: DIANE Publishing
ISBN: 9780788187858
Category : Science
Languages : en
Pages : 92
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Book Description
A nontechnical publication that describe the major findings of the NAWQA (National Water-Quality Assessment) Program on water-quality issues of regional and national concern. The first 2 sections provide a general overview of findings on nutrients and pesticides and their implications for water-resource management and protection. More detailed discussions of the sources, distributions, and potential effects of these chemicals are provided in subsequent sections. Numerous color illustrations.
Author:
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 258
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Book Description
Author:
Publisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 80
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Book Description
Author:
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 28
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Book Description
Author: Robert T. Kay
Publisher:
ISBN:
Category : Cherry Valley (Ill.)
Languages : en
Pages : 70
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Book Description
Author: United States. Congress. House. Committee on Transportation and Infrastructure
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 916
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Book Description
