Long-term variations and source sectors of criteria pollutants in megacities across India

Hemanta Kumar Chakladar, Supervisor Dr. Sayantan Sarkar

There are a large number of air pollutants present in the ambient air. Amongst them, 6 have been listed as criteria air pollutants by the US Environmental Protection Agency (EPA). They are, namely, NOx, CO, SO2, O3, PM and Lead. In terms of effects on human health, these criteria pollutants have bot