National Air Quality Index

Date: April 06, 2015

Air Quality IIT-Kanpur Central Pollution Control Board

Prime Minister Narendra Modi launched India's first Air Quality Index

Prime Minister Narendra Modi has launched a National Air Quality Index (NAQI) to measure the menace of air pollution in Indian cities. Initially this National Air Quality Index will provide information on the quality of air in 10 major cities in the country on a real-time basis. It will have 'one number, one colour and one description' to inform the public about air quality in a simple and easily understandable format.  The ten cities where the quality of air can be monitored are Delhi, Agra, Kanpur, Lucknow, Varanasi, Faridabad, Ahmedabad, Chennai, Bangalore and Ahmedabad.Later the index will be extended to 22 State capitals and 44 other cities with a population exceeding one million.  

prepare ias


Air Quality Index- An air quality index is defined as an overall scheme that transforms the weighed values of individual air pollution related parameters (for example, pollutant concentrations) into a single number or set of numbers. The AQI has been developed by the Central Pollution Control Board in consultation with IIT-Kanpur and an expert group comprising medical, air-quality professionals and other stakeholders. 

The index will consider eight pollutants -- PM10, PM2.5, NO2, SO2, CO, O3, NH3 and Pb. The likely health implications of the six categories would also be provided with a colour code.