Delhi's PM2.5 levels up by 13% on Diwali night this year: Report
PM2.5 levels hit a peak by midnight on Diwali this year, which was 13 per cent higher than the peaks observed last year and in 2022, a recent analysis showed. The Diwali night this year had higher nitrogen dioxide (NO2) levels that indicates high traffic congestion, a report by Centre for Science and Environment (CSE) said.
The research organisation's report also said unlike previous years, on Diwali night in Delhi, there was a quick build-up of PM2.5 levels and dissipation the next day.
«By midnight on October 31, PM2.5 hit a peak of 603 g/m³, 13 per cent higher than Diwali peaks observed in 2022 and 2023,» the report stated.
Meanwhile, a report by the Delhi Pollution Control Committee (DPCC), the PM2.5 levels decreased by 4 per cent as compared to Diwali last year.
PM2.5 are fine inhalable particles with a diameter that is generally 2.5 micrometre or smaller and are hazardous for health conditions. The acceptable annual standard for PM2.5 is 40 micrograms per cubic metre.
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