Sources of Air Pollution
Sources of air pollution sources in British Columbia may be divided between those external to the province, such as transboundary pollution, and those internal to it; and between anthropogenic (man-made) sources and natural sources. External anthropogenic sources include combustion particles and gases from industrial sources in the province of Alberta or the U.S. state of Washington. Mount St. Helens has been a significant external natural source: although located entirely in the United States, its eruption created air pollution in parts of British Columbia.
Exhaust from internal combustion engines (mainly automobiles and trucks, as well as marine vessels in coastal waters) is a major internal anthropogenic source. Other human-caused sources include: Industrial, agricultural (e.g. manure spreading), commercial operations (e.g., dry cleaners and gas stations) and home heating appliances (furnaces, fireplaces).
Background pollution occurs in areas not directly affected by pollution sources.
Read more about this topic: Air Pollution In British Columbia
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