Question raised in Lok Sabha on Increase in Level of Particulate Matter, 21/06/2019

Question raised in Lok Sabha on Increase in Level of Particulate Matter, 21/06/2019. Ambient air quality data of Delhi monitored under Continuous Ambient Air Quality Monitoring Stations (CAAQMS (real time)) during 2016-2018 is enclosed at Annexure-II. The ambient air quality data for metropolitan cities / million plus urban agglomerations during 2016- 2018 is given in Annexure-I. Analysis of data revealed that SO2 levels were within the National Ambient Air Quality Standard (NAAQS) in all 50 cities during 2016-18. With respect to NO2, 17 cities showed an increasing trend, 16 cities showed a decreasing concentration, 16 cities showed a fluctuating trend and 1 city revealed steady concentration. With respect to PM10, 14 cities showed an increasing trend, 14 cities showed a decreasing concentration, 22 cities showed a fluctuating trend. Details of harmful effect of air pollution on human health are given at Annexure-III.

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