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 to11 Dec 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 11 Dec 2025: Loni 292.2 µg/m³, Bawāna 272.6 µg/m³ and Dādri 236.2 µg/m³.

  1. 1LoniUttar Pradesh292.2
  2. 2BawānaDelhi272.6
  3. 3DādriUttar Pradesh236.2
  4. 4NarelaDelhi236.1
  5. 5NoidaUttar Pradesh225.6
  6. 6GhāziābādUttar Pradesh208.6
  7. 7HāpurUttar Pradesh205.6
  8. 8DelhiDelhi204.5
  9. 9SonīpatHaryana178.5
  10. 10BahadurgarhHaryana173.7
  11. 11Greater NoidaUttar Pradesh171.4
  12. 12MeerutUttar Pradesh168.3
  13. 13NajafgarhDelhi165.6
  14. 14Dera MāndiDelhi161.2
  15. 15BhiwadiRajasthan161.2
  16. 16MandideepMadhya Pradesh159.9
  17. 17Aya NagarDelhi157.2
  18. 18BāghpatUttar Pradesh155.8
  19. 19BulandshahrUttar Pradesh153.1
  20. 20MuzaffarnagarUttar Pradesh150.7

+ 218 more cities, 149.2 µg/m³ and below

Not counted on this day, too few days measured: Yamuna Nagar since 2 Dec 2025, Rohtak since 29 Nov 2025, Panipat since 27 Nov 2025 and Nagapattinam since 11 Nov 2025.

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.