Most Polluted Cities — December 2024

272 cities tracked · Average AQI: 131 (Moderate)

Historical air quality for December 2024: India's most polluted cities, ranked from 0 days of CPCB readings across 272 cities. The national average AQI for the month was 131 (Moderate). Byrnihat, Assam was the most polluted city in December 2024 with a monthly average AQI of 314.