Airborne pollutants Current Affairs, GK & News

Smog and Photochemical Smog

Smog is nothing but a combination of smoke and fog. Smog occurs due to the factors like geography, sunlight, industrial activity, vehicular emissions, calmness of winds, burning of coal etc. Smog usually occurs at a place which is far away from the actual source of pollution. At least two distinct types of smog are recognized: ..