Delhi’s PM2.5 levels remained more than twice the safe standards over the past 2 decades

A toxic haze engulfed Delhi for more than a week in November 2017.

Neighbourhood News Desk: Over the past two decades almost, the average level of PM2.5 pollutants that can penetrate deep inside the lungs in Delhi has remained more than two times above the annual permissible limits.While annual permissible limit of PM2.5 is 40ug/m3 according to the National Ambient Air Quality Standards.

Delhi has been ranked the most polluted city in the world by the World Health Organization(WHO) based on the air quality data for megacities with a population of 14 million or more Situation in the satellite towns of Faridabad, Gurgaon, Ghaziabad and Noida has been equally worse. The average level of PM2.5 in Noida was recorded to be 103.4ug/m3, which was the highest among NCR towns. Ghaziabad stands second with 101ug/m3 followed by Delhi.

 

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