2 months ago
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During the past winter, 204 retired of 238 Indian cities recorded mean PM2.5 (a main pollutant) levels supra the Indian modular of 40 g/m³, arsenic per the Central Pollution Control Board (CPCB) information analysed by the Centre for Research connected Energy and Clean Air (CREA).
Ghaziabad was the astir polluted city, signaling an mean PM2.5 attraction of 172 g/m³, followed by Noida (166 g/m³), and Delhi (163 g/m³), arsenic per CREA, a Finland-based autarkic probe group.
As per the analysis, Greater Noida was the 4th astir polluted, followed by Bahadurgarh, Dharuhera, Gurugram, Bhiwadi, Charkhi Dadri, and Baghpat. Uttar Pradesh and Haryana accounted for 4 cities each successful the apical 10 astir polluted cities, on with Delhi and 1 metropolis from Rajasthan.
PM2.5 (particulate substance 2.5) are good inhalable particles that tin get into the lungs and bloodstream and pb to assorted respiratory and different diseases.
The investigation was based connected Continuous Ambient Air Quality Monitoring Stations (CAAQMS) information from the CPCB betwixt October 1, 2025 and February 28, 2026.
Also, nary of the cities analysed met the World Health Organization’s (WHO) PM2.5 modular of 5 g/m³, arsenic per the analysis.
“Among India’s megacities, Delhi (163 g/m³), Kolkata (78 g/m³), Mumbai (48 g/m³), and Chennai (44 g/m³) recorded wintertime 2025-26 mean PM2.5 concentrations supra the nationalist standard. Bengaluru recorded an mean PM2.5 attraction of 39 g/m³, somewhat beneath the NAAQS limit,” CREA said successful a statement.
Cleanest city
Chamarajanagar successful Karnataka was the cleanest metropolis successful India during the past winter, with an mean PM2.5 attraction of 19 g/m³. The 10 cleanest cities included 8 cities from Karnataka and 1 each from Madhya Pradesh and Meghalaya, arsenic per the analysis.
