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Acid "rain" is any form of precipitation (rain, snow, hail, or fog) that contains harmful amounts of nitrogen and sulfur oxides. The major human sources are from industry, transportation, and power plants. These industrial pollutants from the air increase the acidity of the precipitation and harm plants, buildings, and humans.
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Keywords
sulfur dioxide, nitrogen oxides, runoff, atmosphere, pH, precipitation, rainfall, air pollution, atmospheric pollution, sulfuric acid, nitric acid, acidic precipitation, industrial pollutants, acid deposition, power plants, transportation, anthropogenic emissions, pollution source, plant damage, materials damage, building damage, emissions trading, forest decline, Waldsterben, air quality
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