Question

5. Name the top five air pollutants we presently regulate. Is there a common source for these top five air pollutants? If so, what is it? What percentage of our atmospheric gases do these top five regulated gases make up? (SHORT ESSAY)

Answer 1

There are many air pollutants in the environment. Among all these, five main air pollutants are such as Ozone, Carbon monoxide, Sulphur dioxide, Carbon dioxide and Nitrogen dioxide.

1. All these air pollutants are being produced by the combustion of fossil fuels. We can clearly observe that there is the common reason behind that production.

2.Ozone is released from the working environment of the industries and power plants.And this is released by the motor vehicles also. In every process, combustion of fuel or gas is happening.

3.Carbon monoxide is released from the smoke produced by the vehicles. In the motor vehicles, the combustion of petrol and diesel is going on.

4. Combustion of fuels is also the one of the reasons behind the production of carbon dioxide and Nitrogen dioxide.

5. Sulphur dioxide is released from the gases produced by the chemical industries.

6. These five air pollutants gives illness to the human beings and other living creatures.

7. Apart from these air pollutants, there are few air pollutants which have the common source for production.

8. The atmosphere is having 78% of Nitrogen, 21% of Oxygen and 0.93% of other small gases. From these atmospheric gases, some amount of gases get contaminated after mixing with the gases produced by the combustion of fuels.

9.Because the amount of pollutants released is at higher amount, the amount of the gases may get fluctuated.

10. Then the purity in the atmospheric gases gets decreased due to the contamination.

11. Amount of contamination of atmospheric gases varies from the place to place. In the cities it is at the higher level compared to the small villages.

12. Similarly, it is at the higher level at the place where the chemical industries are situated compared to the residential places.