Last Updated
：2025/11/21
photochemical smog
Noun
countable
uncountable
Japanese Meaning
都市部の静かな大気中で、炭化水素や窒素酸化物などの汚染物質が光化学反応を起こし形成される大気汚染
（ plural ）
Quizzes for review
air pollution caused by photochemical reactions involving hydrocarbons, nitrogen oxides and other pollutants, especially in still air over cities.
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photochemical smog
On hot summer afternoons, photochemical smog settled over the city, reducing visibility and aggravating asthma.
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On hot summer afternoons, photochemical smog settled over the city, reducing visibility and aggravating asthma.
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