acid precipitation


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acid precipitation

[′as·əd prə‚sip·ə′tā·shən]
(meteorology)
Rain or snow with a pH of less than 5.6.
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References in periodicals archive ?
Acid precipitation and embryonic mortality of spotted salamanders, Ambystmna maculatum.
The Draft Feasibility Study released by the EPA found that nearly all the sulfur-dioxide emissions that contributed to acid precipitation in the Adirondacks came from sources beyond neighboring states--far more than any other sensitive region.
We spoke with policy makers, forestry experts, state air quality divisions, and members of the National Acid Precipitation Assessment Program.
Bedrock and soils exposed by erosion are very sensitive to acid precipitation in Sectors 1,2, 6, and the low-lying portions of Sectors 3 and 4.
That crisis view isn't supported by the National Acid Precipitation Assessment Program, the government's own study on acid rain.
Sulfates and nitrates from acid rain are, in fact, plant nutrients, according to Ray, and the National Acid Precipitation Assessment Program's NAPAP Report--the definitive scientific assessment of the issue--proves that less than 6 percent of the forests of New England have been adversely affected by acid rain.
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.
Pages 165-171 in acid precipitation - origins and effects: VDI-Berichte 500.
Reports of widespread amphibian declines (Barinaga 1990; Wake 1991) and concerns about the deleterious influence of acid precipitation on amphibian communities have stimulated an increase in recent research on the effects of acidity on amphibians (Freda 1986; Pierce 1993).
Problems such as acid precipitation, non-point source of pollution and chemical contamination can be illustrated through considering impacts on fishing opportunities and experiences.
Aside from fixing such problems, directors of USGCRP should strive to make the results of research intelligible to Congress and other decision makers, thereby avoiding one of the key weaknesses of a major research effort of the 1980s, the National Acid Precipitation Assessment Program.
federally-funded National Acid Precipitation Assessment conclude?