Delhi’s air dirtiest among Indian megacities by wide margin, says report
Kolkata is the second-most polluted megacity during the 2024-25 winter
article_Author
PTI
New Delhi, Updated At : 04:38 PM Mar 18, 2025 IST
fb
twitter
whatsapp
Follow us
Follow us
Connect with us
Connect with us
featured-imgfeatured-img
Advertisement
Delhi remained India’s most polluted megacity by a wide margin during the 2024-25 winter, with an average PM2.5 concentration of 175 micrograms per cubic metre, according to an analysis released on Tuesday.

However, the Centre for Science and Environment analysis found that PM2.5 pollution in the national capital declined in the 2024-25 winter (October 1 to January 31) compared to the 2023-24 winter (189 micrograms per cubic metre).