Ghaziabad tops India’s pollution chart in Nov 2025: CREA

Key facts

• Ghaziabad emerged as the most polluted city in India in November 2025, with a monthly average PM2.5 concentration of 224 µg/m³.
• Noida, Bahadurgarh, Delhi, Hapur, Greater Noida, Baghpat, Sonipat, Meerut and Rohtak joined Ghaziabad in the top 10 most polluted cities.
• Delhi ranked as the fourth most polluted city, recording a monthly average PM2.5 concentration of 215 µg/m³ in November, about twice its October level of 107 µg/m³.
• The contribution of stubble burning was comparatively lower this year, an average of seven per cent in November, down from 20 per cent last year.
• Shillong, Meghalaya was Indiaʼs cleanest city in November, with a monthly average PM2.5 concentration of 7 µg/m³.