First slide

Air Pollution and its Control

Question

Which of the following is a secondary pollutant?

Moderate

A

$C O$
B

$C O_{2}$
C

$S O_{2}$
D

$O_{3}$

Solution

${O_{3}}^{}$ is a secondary pollutant. Secondary pollutants are pollutants which form in the atmosphere. These pollutants are not emitted directly from a source (like vehicles or power plants). Ground-level ozone is a colorless and highly irritating gas that forms just above the earth's surface. It is called a "secondary" pollutant because it is produced when two primary pollutants (nitrogen oxides (NOx) and volatile organic compounds) react in sunlight and stagnant air.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App