SmogRank / History / City race

Cities, 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 7 days to15 May 2026 That day's board

The worst cities for PM2.5 over the 7 days to 15 May 2026: Panipat 101.3 µg/m³, Gurugram 88.1 µg/m³ and Charkhi Dādri 87.3 µg/m³.

  1. 1PanipatIndia101.3
  2. 2GurugramIndia88.1
  3. 3Charkhi DādriIndia87.3
  4. 4KarnālIndia81.6
  5. 5DispurIndia81.0
  6. 6LoniIndia79.2
  7. 7GujranwalaPakistan76.9
  8. 8MuzaffarnagarIndia76.1
  9. 9NarelaIndia75.6
  10. 10JīndIndia73.8
  11. 11FaisalabadPakistan73.4
  12. 12MandideepIndia72.2
  13. 13Dera MāndiIndia72.1
  14. 14ChūruIndia70.5
  15. 15Yamuna NagarIndia70.3
  16. 16KarauliIndia68.9
  17. 17LinaresChile67.8
  18. 18HualquiChile67.7
  19. 19BahadurgarhIndia67.6
  20. 20SirsaIndia66.9

+ 3,028 more cities, the next at 66.5 µg/m³

Not counted on this day, too few days measured: Hāpur since 30 Apr 2026, Bāghpat since 27 Apr 2026 and Kojomkul since 25 Mar 2026.

30 days7 days
GoodModerateUnhealthy for sensitive 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 reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.