“photochemical smog”的概念、定义、翻译、参考文献-科学参考

photochemical smog

Chemistry

A noxious smog produced by the reaction of nitrogen oxides with hydrocarbons in the presence of ultraviolet light from the sun. The reaction is very complex and one of the products is ozone.

Biology

A noxious smog produced by the reaction of nitrogen oxides (e.g. from car exhausts, coal burning) with volatile hydrocarbons in the presence of ultraviolet light from the sun. The reaction is very complex and one of the products is ground-level ozone. See also air pollution.

Geology and Earth Sciences

Hazy condition of the atmosphere due to the reaction of hydrocarbons with molecules of nitrogen oxide in sunlight which produces complex organic molecules of peroxyacetyl nitrates (PAN). In humid conditions these molecules produce smog. Such phenomena are common in large urban areas (e.g. the Los Angeles Basin and Athens) where there are stable atmospheric conditions and a high level of hydrocarbon input from incomplete combustion in car engines. Natural photochemical reactions occur in the high atmosphere with the absorption of radiation by oxygen to produce ozone. See also ozone layer.

Geography

Nitrogen dioxide (NO₂) is emitted from petrol engines. Ultraviolet light splits this into nitric oxide (NO) and monatomic oxygen (O). The hydrocarbons emitted from the burning of fossil fuels react with some of the monatomic oxygen to form photochemical smog. See Hart et al. (2004) 13th Joint Conference on the Applications of Air Pollution Meteorology. Photochemical smog is most common where the sunshine is strong and long-lasting and where car use is high; see Zhang and Oanh (2002) Atmos. Env. 36, 26 on photochemical smog in Bangkok. Photochemical smog damages plants (Arbaugh et al. (2003) Env. Int. 29, 2–6), and irritates eyes and lungs (Fukuoka (1997) Int. J. Biometeorol. 40, 1).

单词	photochemical smog
释义	photochemical smog Chemistry A noxious smog produced by the reaction of nitrogen oxides with hydrocarbons in the presence of ultraviolet light from the sun. The reaction is very complex and one of the products is ozone. Biology A noxious smog produced by the reaction of nitrogen oxides (e.g. from car exhausts, coal burning) with volatile hydrocarbons in the presence of ultraviolet light from the sun. The reaction is very complex and one of the products is ground-level ozone. See also air pollution. Geology and Earth Sciences Hazy condition of the atmosphere due to the reaction of hydrocarbons with molecules of nitrogen oxide in sunlight which produces complex organic molecules of peroxyacetyl nitrates (PAN). In humid conditions these molecules produce smog. Such phenomena are common in large urban areas (e.g. the Los Angeles Basin and Athens) where there are stable atmospheric conditions and a high level of hydrocarbon input from incomplete combustion in car engines. Natural photochemical reactions occur in the high atmosphere with the absorption of radiation by oxygen to produce ozone. See also ozone layer. Geography Nitrogen dioxide (NO₂) is emitted from petrol engines. Ultraviolet light splits this into nitric oxide (NO) and monatomic oxygen (O). The hydrocarbons emitted from the burning of fossil fuels react with some of the monatomic oxygen to form photochemical smog. See Hart et al. (2004) 13th Joint Conference on the Applications of Air Pollution Meteorology. Photochemical smog is most common where the sunshine is strong and long-lasting and where car use is high; see Zhang and Oanh (2002) Atmos. Env. 36, 26 on photochemical smog in Bangkok. Photochemical smog damages plants (Arbaugh et al. (2003) Env. Int. 29, 2–6), and irritates eyes and lungs (Fukuoka (1997) Int. J. Biometeorol. 40, 1).
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