What is photochemical smog? How is it different from industrial smog?
Answers
Answer:
Chemistry of Photochemical Smog. According to the U.S. Environmental Protection Agency, photochemical smog is a mixture of pollutants that form when nitrogen oxides and volatile organic compounds react to sunlight, creating a haze that is common over cities.
Answer:
Though these smogs are very similar ,they have differences in their composition and origin:
--->Industrial smog forms when smoke and sulfur emissions, from coal burning, combine with fog, under the right conditions. While the release of large quantities of air pollutants can form industrial smog, other factors have an important role in its formation.
--->The combustion of other fossil fuels, such as gasoline by motor vehicles and industry, releases primary pollutants: volatile organic compounds and nitrogen oxides, which lead to the production of photochemical smog.
--->These fossil fuels have reduced the usage of coal ,thus industrial smog is rare these days while cases of photochemical smog have increased.