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 to13 Dec 2025 That day's board

The worst cities in India for PM2.5 over the 30 days to 13 Dec 2025: Loni 296.0 µg/m³, Bawāna 270.8 µg/m³ and Dādri 247.1 µg/m³.

  1. 1LoniUttar Pradesh296.0
  2. 2BawānaDelhi270.8
  3. 3DādriUttar Pradesh247.1
  4. 4NarelaDelhi236.5
  5. 5NoidaUttar Pradesh235.1
  6. 6GhāziābādUttar Pradesh210.3
  7. 7DelhiDelhi203.5
  8. 8HāpurUttar Pradesh203.4
  9. 9MeerutUttar Pradesh174.1
  10. 10SonīpatHaryana173.3
  11. 11Greater NoidaUttar Pradesh170.7
  12. 12BahadurgarhHaryana169.4
  13. 13MandideepMadhya Pradesh162.3
  14. 14NajafgarhDelhi161.7
  15. 15BhiwadiRajasthan161.0
  16. 16MuzaffarnagarUttar Pradesh158.5
  17. 17Dera MāndiDelhi156.4
  18. 18DhāruheraHaryana155.6
  19. 19BāghpatUttar Pradesh155.6
  20. 20Aya NagarDelhi153.3

+ 219 more cities, 150.2 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.