Question

All are particulate pollutant except

• A. Soot
• B. Dust
• C. Smoke
• D. Ozone

Answer 1

The correct option is D

Ozone

• Pollutants: Agents that bring about such an undesirable change are called as pollutants.
• Particulate pollutants: Particulate pollutants are solid particles in the air that cause pollution.

Explanation for incorrect option:

• Out of the given options, Soot, dust, and smoke are the particulate pollutants as all these contain solid pollutant particles.

Explanation for correct option:

• ozone is a gaseous pollutant.
• Ozone $\left({\mathrm{O}}_3\right)$ is found in the upper part of the atmosphere called the stratosphere, and it acts as a shield absorbing harmful ultraviolet radiation from the sun.
• Ground-level ozone acts as a pollutant and is harmful to human health and the environment.

Hence, the correct option is (D).