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acid rain |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.14 sec. |
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acid rain, the precipitation of moisture, as rain, with high acidity caused by release into the atmosphere of pollutants from industry, motor vehicle exhaust, and other sources. Acid precipitation with a pH of 5.6 or lower is blamed by various authorities for numerous human health problems, fish kills, and the destruction of timber. Also called acid precipitation, acid snow. See also acid dust, acid flush, and acid mist. acid rain rain which contains materials, sulfates and oxidation products of nitrogen and sulfur particularly, produced by combustion of coal and oil in industrial processes and by motor vehicles; lowers the pH of water bodies; see acid waters; credited with local decline of fish culture. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | |
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[The transboundary
pollution issue] came up with acid precipitation, but it hasn't
come up with persistent pollutants.
Years of heavy acid precipitation have eroded Paine Run's buffering
capacity to the point where it's almost gone. Forest hydrologist William Sharpe of Pennsylvania State University
suggests the root of the mortality problem is in the soils, which he
believes have been altered by acid precipitation, thereby lowering the
trees' resistance to the natural stresses of drought, insects, and
disease. |
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