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.

The 30 days to10 Jan 2026 That day's board

The worst cities in India for PM2.5 over the 30 days to 10 Jan 2026: Noida 246.1 µg/m³, Dādri 228.9 µg/m³ and Narela 227.7 µg/m³.

  1. 1NoidaUttar Pradesh246.1
  2. 2DādriUttar Pradesh228.9
  3. 3NarelaDelhi227.7
  4. 4BawānaDelhi222.7
  5. 5DelhiDelhi217.1
  6. 6GhāziābādUttar Pradesh177.8
  7. 7GurugramHaryana166.9
  8. 8Greater NoidaUttar Pradesh165.1
  9. 9DhāruheraHaryana164.7
  10. 10MeerutUttar Pradesh158.6
  11. 11Dera MāndiDelhi150.7
  12. 12GummidipundiTamil Nadu147.8
  13. 13NajafgarhDelhi147.4
  14. 14Aya NagarDelhi143.1
  15. 15Dera Colliery TownshipOdisha136.8
  16. 16BhiwadiRajasthan136.7
  17. 17BaddiHimachal Pradesh131.4
  18. 18BāghpatUttar Pradesh125.2
  19. 19BahadurgarhHaryana124.5
  20. 20MuzaffarnagarUttar Pradesh123.8

+ 223 more cities, 122.1 µg/m³ and below

Not counted on this day, too few days measured: Loni since 7 Jan 2026, Yamuna Nagar since 2 Dec 2025 and Rohtak since 29 Nov 2025.

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.