EPA 130/1
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Total Pages | : 92 |
Release | : 1979 |
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Author | : |
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Total Pages | : 92 |
Release | : 1979 |
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Total Pages | : |
Release | : 19?? |
Genre | : Environmental management |
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Author | : United States. Environmental Protection Agency. Office of Water Regulations and Standards |
Publisher | : |
Total Pages | : 456 |
Release | : 1986 |
Genre | : Water |
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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.
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Total Pages | : 378 |
Release | : 2002 |
Genre | : Sewage |
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"This manual contains overview information on treatment technologies, installation practices, and past performance."--Introduction.
Author | : David J. Hiltebrand |
Publisher | : |
Total Pages | : 672 |
Release | : 1991 |
Genre | : Law |
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This manual suggests design operating and performance criteria for specific surface water quality conditions to provide the optimum protection from microbiological contaminants.
Author | : United States. Environmental Protection Agency. Management and Organization Division |
Publisher | : |
Total Pages | : 328 |
Release | : 1994 |
Genre | : Juvenile Nonfiction |
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Total Pages | : |
Release | : 19?? |
Genre | : Industries |
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Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 531 |
Release | : 2007-01-22 |
Genre | : Nature |
ISBN | : 030910128X |
Most people associate fluoride with the practice of intentionally adding fluoride to public drinking water supplies for the prevention of tooth decay. However, fluoride can also enter public water systems from natural sources, including runoff from the weathering of fluoride-containing rocks and soils and leaching from soil into groundwater. Fluoride pollution from various industrial emissions can also contaminate water supplies. In a few areas of the United States fluoride concentrations in water are much higher than normal, mostly from natural sources. Fluoride is one of the drinking water contaminants regulated by the U.S. Environmental Protection Agency (EPA) because it can occur at these toxic levels. In 1986, the EPA established a maximum allowable concentration for fluoride in drinking water of 4 milligrams per liter, a guideline designed to prevent the public from being exposed to harmful levels of fluoride. Fluoride in Drinking Water reviews research on various health effects from exposure to fluoride, including studies conducted in the last 10 years.
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Total Pages | : 378 |
Release | : 1975 |
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Total Pages | : 236 |
Release | : 1974-08 |
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