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 to12 Sep 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 12 Sep 2025: Cuddalore 66.5 µg/m³, Gummidipundi 66.4 µg/m³ and Mothīhāri 55.7 µg/m³.

  1. 1CuddaloreTamil Nadu66.5
  2. 2GummidipundiTamil Nadu66.4
  3. 3MothīhāriBihar55.7
  4. 4SamāstipurBihar52.6
  5. 5AurangābādBihar50.8
  6. 6ChāpraBihar44.1
  7. 7JhānsiUttar Pradesh42.4
  8. 8NalbāriAssam42.0
  9. 9DhaulpurRajasthan42.0
  10. 10Kahi KuchiAssam41.7
  11. 11RasapūdipalemAndhra Pradesh41.2
  12. 12Sri GanganagarRajasthan41.0
  13. 13OotyTamil Nadu40.2
  14. 14VijayawadaAndhra Pradesh39.1
  15. 15RamanathapuramTamil Nadu39.0
  16. 16BawānaDelhi38.4
  17. 17TirupatiAndhra Pradesh38.2
  18. 18BuxarBihar37.8
  19. 19LoniUttar Pradesh36.4
  20. 20AlangadKerala36.0

+ 200 more cities, 35.4 µg/m³ and below

Not counted on this day, too few days measured: Kishanganj since 12 Sep 2025, Rānipet since 9 Sep 2025, Arāria since 8 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.