Area Source

Area sources are sources of pollution which emit a substance or radiation from a specified area. For example, area sources of air pollution are air pollution sources which operate within a certain region. Locomotives operating on certain tracks or paths are examples of a line source, whereas locomotives operating within a railyard are an example of an area source of pollution. Other area sources of pollution are:Multiple flue gas stacks within a single industrial plantOpen burning and forest firesEvaporation losses from large spills of volatile liquidsSurface runoff of rainfall or irrigation water
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Any source of air pollution that is released over a relatively small area but which cannot be classified as a point source. Such sources may include vehicles and other small engines, small businesses and household activities, or biogenic sources such as a forest that releases hydrocarbons.

Any source of air pollution that is released over a relatively small area but which cannot be classified as a point source. Such sources may include vehicles and other small engines, small businesses and household activities, or biogenic sources such as a forest that releases hydrocarbons.