Percentage of locations exceeding NAAQS in residential industrial rural areas

Importance of National Ambient Air Quality Standards

Air Pollutant includes any substance in solid, liquid or gaseous form present in the atmosphere in concentrations which may tend to be injurious to all living creatures, property and environment. Various contaminants in different forms from both man-made and natural sources perpetually enter our environment30

Automobile exhaust gas

Vehicular Pollution and Emission Standards in India

Vehicle emission norms were set for the first time in 1990’s when the government under the Supreme Court order introduced Euro norms in 1999. Later, it was replaced by Bharat Stage Emission standards. Under the Bharat Stage IV norms which are in turn based on30