SmogRank / History / City race

Cities in India, worst air first, day by day

Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.

CountriesCities
The 30 days to17 Apr 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 17 Apr 2025: Loni 183.9 µg/m³, Bawāna 112.4 µg/m³ and Dādri 106.7 µg/m³.

  1. 1LoniUttar Pradesh183.9
  2. 2BawānaDelhi112.4
  3. 3DādriUttar Pradesh106.7
  4. 4NarelaDelhi98.0
  5. 5Kahi KuchiAssam94.4
  6. 6HājīpurBihar90.3
  7. 7GuwahatiAssam88.8
  8. 8GhāziābādUttar Pradesh87.9
  9. 9AurangābādBihar83.2
  10. 10Dera MāndiDelhi79.9
  11. 11SasarāmBihar79.2
  12. 12SiliguriWest Bengal78.5
  13. 13RourkelaOdisha77.6
  14. 14SiltaraChhattisgarh72.7
  15. 15DelhiDelhi72.1
  16. 16TiruchirappalliTamil Nadu68.7
  17. 17SingrauliMadhya Pradesh67.1
  18. 18PāliRajasthan67.0
  19. 19NajafgarhDelhi66.0
  20. 20ChāndaMaharashtra65.4

+ 166 more cities, the next at 64.6 µg/m³

Not counted on this day, too few days measured: Begusarai since 16 Apr 2025, Jājang since 16 Apr 2025, Purnia since 15 Apr 2025 and 8 more cities.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that day

A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.

Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites. We are building the reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.