Most Polluted Cities — December 2017

49 cities tracked · Average AQI: 212 (Poor)

Historical air quality for December 2017: India's most polluted cities, ranked from 0 days of CPCB readings across 49 cities. The national average AQI for the month was 212 (Poor). Ghaziabad, Uttar Pradesh was the most polluted city in December 2017 with a monthly average AQI of 406.