Photochemical-smog
noun, Meteorology.
1.
air pollution containing ozone and other reactive compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
photochemical smog n.
Air pollution produced by the action of sunlight on hydrocarbons, nitrogen oxides, and other pollutants.
photochemical smog
(fō’tō-kěm’ĭ-kəl)
See smog.
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