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 to15 Apr 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 15 Apr 2025: Loni 182.0 µg/m³, Bawāna 111.8 µg/m³ and Dādri 99.5 µg/m³.

  1. 1LoniUttar Pradesh182.0
  2. 2BawānaDelhi111.8
  3. 3DādriUttar Pradesh99.5
  4. 4NarelaDelhi96.3
  5. 5Kahi KuchiAssam94.4
  6. 6GuwahatiAssam90.6
  7. 7HājīpurBihar90.5
  8. 8GhāziābādUttar Pradesh85.8
  9. 9AurangābādBihar82.3
  10. 10Dera MāndiDelhi79.1
  11. 11SasarāmBihar77.7
  12. 12RourkelaOdisha77.4
  13. 13SiliguriWest Bengal76.3
  14. 14SiltaraChhattisgarh73.9
  15. 15JājangOdisha72.7
  16. 16TiruchirappalliTamil Nadu70.5
  17. 17DelhiDelhi70.5
  18. 18PāliRajasthan67.0
  19. 19NajafgarhDelhi66.8
  20. 20ChāndaMaharashtra66.6

+ 179 more cities, 65.5 µg/m³ and below

Not counted on this day, too few days measured: Purnia since 15 Apr 2025, Ropar since 14 Apr 2025, Nohan since 14 Apr 2025 and 6 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.