Firecrackers Account For 71% Of Delhi’s PM2.5 Pollution Post Diwali, Biggest Contributor For 3 Days

Firecrackers Account For 71% Of Delhi's PM2.5 Pollution Post Diwali, Biggest Contributor For 3 Days

Firecrackers accounted for up to 71.1 per cent of Delhi's PM2.5 pollution on the night of Diwali and the following morning, emerging as the biggest contributor to the city's pollution levels for three consecutive days, according to data from the Ministry of Earth Sciences' Real-Time Source Apportionment (RTSA-Delhi) system.

The data, recorded between 1 am and 9 am, showed that firecrackers contributed 71.1 per cent to PM2.5 readings on November 9, a day after Diwali. Their contribution stood at 43.4 per cent on November 8 and 29.8 per cent on November 10. The standard deviation (SD) in the readings was 104.1 on November 9, 76.4 on November 8 and 27.7 on November 10.

Meanwhile, no contribution from stubble burning was recorded in the PM2.5 readings on November 9 and November 10. The data showed that crop residue burning had contributed 3.6 per cent on November 8, 4.5 per cent on November 7, 10.2 per cent on November 6 and 20.7 per cent on November 5. No data on stubble burning contribution was available for November 9 and 10.

Starting Nov 5, the stubble-burning contribution has…

Original source: https://www.timesnownews.com/delhi