A dense, discolored radiation fog containing large quanities of soot, ash, and gaseous
pollutants such as sulfur dioxide and carbon
dioxide, responsible for human respiratory ailments. Most industrialized
nations have implemented legislation to promote the use of smokeless fuel and
reduce emission of toxic gases into the atmosphere.

See Also: Carbon Dioxide, greenhouse gases

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Standards to Reduce Toxic Power Plant Air Pollution

SMOG- EPA