The term “smog” was coined in 1905 by H.A. Des Voex. It is a combination of the words “smoke” and “fog”.
Smog is produced from pollution from such places as factories and vehicles. It is made up of gas from slightly above Earth’s surface, part of the ozone, particular matter and exhaust. Particular matter is made from “small solid and liquid particles” (cbc.ca).
Pollutants in the air can be more harmful to floral than they are to humans. Trees can most definitely be killed by smog and whole ecosystems are damaged. In Los Angeles more than 50% of tree deaths seem to be a direct result of smog and its effects.
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