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English definition of “photochemical smog”

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photochemical smog

noun [C or U] uk   us  
a fog caused by light from the sun shining on chemicals in the air produced by traffic and industry
Translations of “photochemical smog”
in Chinese (Traditional) 光化學煙霧…
in Chinese (Simplified) 光化烟雾…
(Definition of photochemical smog from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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