air pollution summary
Learn about the causes and effects of air pollution, including particulate and chemical pollution, in the atmosphere
Below is the article summary. For the full article, see air pollution.
acid rain Summary
Acid rain, precipitation possessing a pH of about 5.2 or below primarily produced from the emission of sulfur dioxide (SO2) and nitrogen oxides (NOx; the combination of NO and NO2) from human activities, mostly the combustion of fossil fuels. In acid-sensitive landscapes, acid deposition can reduce