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 to14 Apr 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 14 Apr 2025: Loni 177.8 µg/m³, Bawāna 109.6 µg/m³ and Dādri 96.2 µg/m³.

  1. 1LoniUttar Pradesh177.8
  2. 2BawānaDelhi109.6
  3. 3DādriUttar Pradesh96.2
  4. 4Kahi KuchiAssam94.4
  5. 5NarelaDelhi94.1
  6. 6HājīpurBihar90.6
  7. 7GuwahatiAssam89.1
  8. 8GhāziābādUttar Pradesh84.6
  9. 9AurangābādBihar81.6
  10. 10RourkelaOdisha78.5
  11. 11Dera MāndiDelhi77.4
  12. 12SasarāmBihar77.2
  13. 13SiliguriWest Bengal75.1
  14. 14JājangOdisha74.9
  15. 15SiltaraChhattisgarh73.9
  16. 16TiruchirappalliTamil Nadu70.5
  17. 17DelhiDelhi69.8
  18. 18PurniaBihar68.0
  19. 19SingrauliMadhya Pradesh66.5
  20. 20ChāndaMaharashtra66.3

+ 185 more cities, 66.0 µg/m³ and below

Not counted on this day, too few days measured: Ropar since 14 Apr 2025, Nohan since 14 Apr 2025, Gangtok since 13 Apr 2025 and 5 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 readers for them. Most cities there are missing from this board, not clean. Why.