Question

What are the components of smog among the following options?
A. \[O_3\]
B. PAN
C. PPN and PBN
D. Both A and B

Answer 1

Hint: Smog is made up of many chemical components like nitrogen oxide (\[N{O_X}\]), sulphur dioxide (\[S{O_x}\]), carbon monoxide (\[CO\]), and many more volatile organic compounds and particulate matter.

Complete answer:
Smog is a special type of air pollutant which is a mixture of many harmful effluents from industries and household activities. These activities are both man-made and natural. But rate is a very important aspect to be considered, if the amount of effluents is normal or under control there is no threat to humans or to the environment but the reality is flow rate is very high. Everything is just thrown into the atmosphere without treatment and this all results in air pollution and harm to the environment as well every species existing on the earth.
Smog is made up of many chemical components like nitrogen oxide (\[N{O_X}\]), sulphur dioxide (\[S{O_x}\]), carbon monoxide (\[CO\]), many more volatile organic compounds (VOCs), but mainly two components are particulate matter (\[PM\]) and ozone present at ground.
These components or pollutants which present in the smog are highly reactive chemically and very much harmful to humans and the different animals. This type of air pollution can cause many respiratory diseases like asthma, many skin related problems and sometimes it may cause eye irritation.

Hence, the correct answer is option (D).

Note: Smog is the name given to the combination of smoke and fog. The components of the smog are mainly secondary pollutants that is, these pollutants precipitate under the exposure of sunlight.