Question

What is SPM? What harm does SPM pollution cause?

Answer 1

Solid particles of very minute size that are present in air are known as SPM (Suspended Particulate Matter).
SPM pollution is harmful in the following ways:

1. SPM can cause lung cancer because our nose hair is not able to filter such minute particles.
2. SPM is deposited on plants, which restricts the process of photosynthesis.