Acid Rain

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Acid Rain

Precipitation with low pH, usually resulting from excessive sulfur or nitrogen oxides in the atmosphere. Acid rain is detrimental to both plant and animal life. It has become less common since the 1970s, when governments began to take steps to reduce the sulfur released into the air.
References in periodicals archive ?
52) In advisory committee sessions, the Adirondack Council urged the EPA to adopt the approach taken in New York's Acid Deposition Act, and to retain the power to intervene in trades that might contribute additional deposition to sensitive resource areas.
Many other benefits are likewise ignored or underestimated in most studies, specifically the diminution of impacts and effects from improvements in stratospheric ozone depletion, acid deposition and hazardous air pollutants.
The EPA has used a computer model called the Regional Acid Deposition Model ("RADM")(165) "to predict the influence of emissions sources in one region on acidic deposition in other geographic regions, and to predict the levels of acidic deposition in certain sensitive receptor regions.
The additional SO2 controls are administered on a national basis to reduce acid deposition primarily in the northeastern U.
Working from a laboratory outside Los Angeles, Miller is confident that despite ozone, acid deposition, and drought, some types of forests will grow.
Key issues include measures to reduce acid deposition, to combat ozone and carbon monoxide pollution in urban areas, to curtail the emission of toxic substances, to control indoor air pollution and to develop technologies for burning coal more cleanly.
Some of the planned projects are: determining the pH of precipitation and soil samples in order to see what effects acid deposition has on plants and other materials; building a model to simulate the greenhouse effect; determining which fuels are more efficient based on mass use; calculating the number of calories needed daily by individuals, and relating that to world food supply and population; simulating an oak forest to determine average food production; modeling the depletion of a natural resource; and other specific experiments.
The BWCA Wilderness is rated as the Minnesota area most sensitive to acid deposition, enduring acid inputs at levels that damaged the most sensitive Scandinavian lakes and their aquatic ecosystems.
The NAPAP report also says acid deposition,under the right geological and soil conditions, contributes to acidifying lakes (SN: 3/22/86, p.
Despite problems with acidification of lakes, Stout says acid deposition has not revealed its hand in the forests.
If such a device is workable and economically feasible -- two big ifs -- it would help in the acid deposition problem in the East," he says, "because NO.
Baboian blames the effect on acid deposition and the severe weather patterns that come from the northeast (SN: 6/29/85, p.