Mumbai registered the sharpest decrease (-42.1%) in carcinogenic PM2.5 levels in air in Jan this year compared to the same period in 2023 and -17.3% compared to Jan 2019, according to an analysis of air quality in major national cities. Kolkata showed the most significant improvement of 50.6% in PM 2.5 levels. Jaipur experienced the highest increase in toxicity in its air.
PM2.5 pollution in the national capital has reduced by over 7 per cent in four years, from 108 micrograms per cubic metre in 2019 to 99.71 micrograms per cubic metre in 2022
Delhi was the most polluted city in India in 2022 with PM 2.5 levels more than double the safe limit and the third highest average PM10 concentration, according to an analysis of Central Pollution Control Board data.
Delhi was the most polluted city in India in 2022 with PM2.5 levels more than double the safe limit and the third highest average PM10 concentration, according to an analysis of Central Pollution Control Board data.