Delhi's Diwali Pollution Surge: PM2.5 Peaks at Five-Year High

Delhi's air quality deteriorated sharply post-Diwali, with PM2.5 levels hitting a five-year high of 488 micrograms per cubic metre. Research attributes the surge to local firecracker emissions, stagnant winds, and temperature inversion. Rising pollution highlights enforcement challenges and public negligence, posing severe health risks.


Devdiscourse News Desk | New Delhi | Updated: 21-10-2025 17:34 IST | Created: 21-10-2025 17:34 IST
Delhi's Diwali Pollution Surge: PM2.5 Peaks at Five-Year High
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In a concerning trend, Delhi's air quality took a nosedive following Diwali, with PM2.5 levels skyrocketing to their highest in five years. Central Pollution Control Board (CPCB) data reveals a sharp increase to 488 micrograms per cubic metre, more than triple the pre-Diwali pollution levels.

An analysis by Climate Trends highlights how local emissions from firecrackers and stagnant winds are mainly responsible for the rise. The study also points to temperature inversion trapping pollutants close to the ground. Experts like S K Dhaka emphasize the need for better firecracker quality checks.

Despite prolonged warnings and bans, pollution levels remain severe post-Diwali in Delhi-NCR. Experts warn of significant health risks, equating breathing air in this period to smoking 10 cigarettes a day. The situation urges a rethink on firework advisories amid critical air quality conditions.

(With inputs from agencies.)

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