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 Sep 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 14 Sep 2025: Cuddalore 74.8 µg/m³, Gummidipundi 68.4 µg/m³ and Aurangābād 61.2 µg/m³.

  1. 1CuddaloreTamil Nadu74.8
  2. 2GummidipundiTamil Nadu68.4
  3. 3AurangābādBihar61.2
  4. 4MothīhāriBihar56.1
  5. 5SamāstipurBihar51.1
  6. 6ChāpraBihar47.2
  7. 7SingrauliMadhya Pradesh46.0
  8. 8RasapūdipalemAndhra Pradesh43.6
  9. 9OotyTamil Nadu42.2
  10. 10Kahi KuchiAssam42.1
  11. 11RamanathapuramTamil Nadu40.7
  12. 12NalbāriAssam40.2
  13. 13Sri GanganagarRajasthan39.9
  14. 14JhānsiUttar Pradesh39.2
  15. 15VijayawadaAndhra Pradesh39.0
  16. 16BawānaDelhi38.3
  17. 17BuxarBihar37.8
  18. 18DhaulpurRajasthan37.5
  19. 19AlangadKerala37.4
  20. 20BhiwadiRajasthan36.8

+ 201 more cities, 35.9 µg/m³ and below

Not counted on this day, too few days measured: Tirupati since 13 Sep 2025, Kishanganj since 12 Sep 2025, Rānipet since 9 Sep 2025 and 11 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.