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Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average.
The Acid Rain Program is a market-based initiative taken by the United States Environmental Protection Agency in an effort to reduce overall atmospheric levels of sulfur dioxide and nitrogen oxides, which cause acid rain. [1]
Acid rain is a form of air deposition in which industrial facilities and motor vehicles emit gases such as nitrogen oxide, which interact with water vapor and then fall into water bodies, as well as on land. The acid rain drains all the important nutrients, such as oxygen, from the water and soil, causing harm to marine life.
The Eastern Canadian Provinces (dark green) were the focal point in Canada's mitigation plan towards minimizing acid rain in the country, and lead to the implementation of the Eastern Canada Acid Rain Program in 1985. The United States-Canada Air Quality Agreement initially prioritized the reduction of acid rain within each country. [13]
The Acid Rain Program (ARP) is an emissions trading program for power plants to control the pollutants that cause acid rain. [13] The 1990 CAA Amendments created a new title to address the issue of acid rain, and particularly nitrogen oxides (NO x ) and sulfur dioxide (SO 2 ) emissions from electric power plants powered by fossil fuels, and ...
Diagram depicting the sources and cycles of acid rain precipitation. Freshwater acidification occurs when acidic inputs enter a body of fresh water through the weathering of rocks, invasion of acidifying gas (e.g. carbon dioxide), or by the reduction of acid anions, like sulfate and nitrate within a lake, pond, or reservoir. [1]
The Golden Gate City is forecast to receive 2-4 inches of rain through Tuesday, while rain in Redding can total 4-8 inches. Such eye-popping rain totals are common with Pineapple Express ...
Operation Popeye / Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972.