photochemical smog

photochemical smog definition - medical

photochemical smog

noun
Air pollution produced by the action of sunlight on hydrocarbons, nitrogen oxides, and other pollutants.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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