Photochemical smog: Difference between revisions

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|Meaning=Air contaminated with [[ozone]], [[nitrogen oxides]], and [[hydrocarbons]], with  or without natural [[fog]] being present.
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|Explanation=In the presence of [[sunlight]], [[hydrocarbons]] and [[NO<sub>x</sub>]] are involved in a complex series of chemical  reactions that eventually creates ozone and other [[oxidants]] as [[secondary pollutants]]. However,  ozone is also destroyed by NO<sub>x</sub>. Photochemical [[air pollution]] levels are generally proportional to  concentrations of nitrogen oxides and hydrocarbons; they also increase with strong solar [[intensity]]  and high ambient temperatures, which increase biogenic volatile organic emissions to the [[atmosphere]]  from vegetation. The pollutant levels are inversely proportional to [[wind speed]] and [[inversion]]  height. <br/>''See also'' [[smog]].
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== photochemical smog ==
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<div class="definition"><div class="short_definition">Air contaminated with [[ozone]], [[nitrogen oxides]], and [[hydrocarbons]], with  or without natural [[fog]] being present.</div><br/> <div class="paragraph">In the presence of [[sunlight]], [[hydrocarbons]] and [[NO<sub>x</sub>]] are involved in a complex series of chemical  reactions that eventually creates ozone and other [[oxidants]] as [[secondary pollutants]]. However,  ozone is also destroyed by NO<sub>x</sub>. Photochemical [[air pollution]] levels are generally proportional to  concentrations of nitrogen oxides and hydrocarbons; they also increase with strong solar [[intensity]]  and high ambient temperatures, which increase biogenic volatile organic emissions to the [[atmosphere]]  from vegetation. The pollutant levels are inversely proportional to [[wind speed]] and [[inversion]]  height. <br/>''See also'' [[smog]].</div><br/> </div>
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Latest revision as of 03:06, 29 March 2024

Air contaminated with ozone, nitrogen oxides, and hydrocarbons, with or without natural fog being present.

In the presence of sunlight, hydrocarbons and [[NOx]] are involved in a complex series of chemical reactions that eventually creates ozone and other oxidants as secondary pollutants. However, ozone is also destroyed by NOx. Photochemical air pollution levels are generally proportional to concentrations of nitrogen oxides and hydrocarbons; they also increase with strong solar intensity and high ambient temperatures, which increase biogenic volatile organic emissions to the atmosphere from vegetation. The pollutant levels are inversely proportional to wind speed and inversion height.
See also smog.

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