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English definition of “photochemical smog”

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 industryClouds, dew, fog and steamEnvironmental issuesRubbish and wasteProtection and protectors
(Definition of photochemical smog from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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Translations of “photochemical smog”

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