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Definition of Photochemical smog
1. Noun. air pollution caused by photochemical reactions involving hydrocarbons, nitrogen oxides and other pollutants, especially in still air over cities ¹
¹ Source: wiktionary.com
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1. Noun. air pollution caused by photochemical reactions involving hydrocarbons, nitrogen oxides and other pollutants, especially in still air over cities ¹
¹ Source: wiktionary.com