Question

What are the harmful colloidal particles in air?

Answer 1

Answer:

Particle Pollution and Your Health

Breathing in particle pollution can be harmful to your health. Coarse (bigger) particles, called PM10, can irritate your eyes, nose, and throat. ... Fine (smaller) particles, called PM2.5, are more dangerous because they can get into the deep parts of your lungs — or even into your blood.

Hope it helps you