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 to10 Dec 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 10 Dec 2025: Loni 291.4 µg/m³, Bawāna 279.1 µg/m³ and Narela 241.5 µg/m³.

  1. 1LoniUttar Pradesh291.4
  2. 2BawānaDelhi279.1
  3. 3NarelaDelhi241.5
  4. 4DādriUttar Pradesh237.4
  5. 5NoidaUttar Pradesh228.0
  6. 6GhāziābādUttar Pradesh210.6
  7. 7DelhiDelhi208.9
  8. 8HāpurUttar Pradesh208.8
  9. 9SonīpatHaryana181.7
  10. 10BahadurgarhHaryana179.2
  11. 11Greater NoidaUttar Pradesh175.5
  12. 12NajafgarhDelhi170.7
  13. 13MeerutUttar Pradesh165.4
  14. 14Dera MāndiDelhi164.3
  15. 15BhiwadiRajasthan163.6
  16. 16Aya NagarDelhi162.3
  17. 17MandideepMadhya Pradesh160.2
  18. 18BulandshahrUttar Pradesh156.2
  19. 19BāghpatUttar Pradesh154.8
  20. 20DhāruheraHaryana149.6

+ 218 more cities, 145.9 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.