Question 6
What is smog? How is classical smog different from photochemical smog?
Smog is a kind of air pollution. It is the blend of smoke and fog. There are two kinds of smog:
a) Classical smog
b) Photochemical smog
The two smogs can be differentiated as follows:
Classical smog :
It occurs in a cool, humid climate.
It's components are Smoke, fog, and sulphurdioxide.
It is reducing in nature
Photochemical smog :
It occurs in a dry, sunny climate.
It's components are PAN, acrolein, ozone, formaldehyde, nitric oxide.
It is oxidizing in nature.
