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The law, commonly known as the Clean Water Act, set two national goals: elimination of the discharge of pollutants into the nation''s waters, and achievement of water quality to protect fishing and swimming. Pollutants from industrial and sewage tr...
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DISINFECTION BY-PRODUCTS IN DRINKING WATER Disinfection is the most important step in the water treatment process to destroy pathogenic bacteria and other harmful agents. Because chlorination is a very common and effective method for such disinfe...
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In the United States, the rate of consumption of drinking water is almost 100 gallons per person per day. Only a small portion of the"drinking water" supplied by public water systems is actually used for drinking; other uses include toilet flushin...
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Charles-Edward Amory Winslow(1877–1957) was a seminal figure in public health, not only in his own country, the United States, but in the wider Western world. His vision and intellectual leadership enabled him, more than anyone else, to infl...
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"Water quality" is a technical term that is based upon the characteristics of water in relation to guideline values of what is suitable for human consumption and for all usual domestic purposes, including personal hygiene. Components of water qual...
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The goal of water treatment is to reduce or remove all contaminants that are present in the water. No water, irrespective of the original source, should be assumed to be completely free of contaminants.
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The catalogue of waterborne pathogens is long, and it includes many that are well-known as well as far larger numbers of more obscure organisms. Waterborne pathogens include viruses(e.g., hepatitis A, poliomyelitis); bacteria(e.g., cholera, typhoi...
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The term"pollution," which carries with it a sense of an impurity, can be defined as a chemical or physical agent in an inappropriate location or concentration. The sources of pollution are varied.
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