Question:
What is smog? How is classical smog different from photochemical smogs?
Answer:
Smog is a definite air pollutant. It consist with SO2, NO2, Ozone, others pollutant which causes severe human health problems.
Smog s are of two types (1) classical smog. (2) photochemical smog
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Classical smog |
Photochemical smog |
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It is called London smog |
It is called Los Angeles smog |
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It formed because of SO2, moisture and particulates in air. |
It is formed due to Photochemical reaction between oxides of nitrogen and hydrocarbons present in the air in the presence of sunlight. |
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It is reducing in nature because of the presence of SO2 |
It is oxidizing in nature because of the presence of NO2, Ozone |
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It involves smoke and fog |
It does not involves smoke and fog |
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