Pollution plumes in Paris air are richer in gaseous aromatic compounds than in Los Angeles

Thursday, April 18, 2013 - 23:00 in Physics & Chemistry

What is the origin of the volatile hydrocarbons, other than methane, present in city air? Mainly gasoline-powered vehicles, according to a new study. The study also shows that the proportion of gaseous aromatic compounds in hydrocarbon emissions is two to three times greater in pollution plumes in Paris than in Los Angeles, even though the total quantity of hydrocarbons emitted in Los Angeles remains considerably greater than in Paris.

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