SmogRank / History / City race

Cities in Austria, 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 Austria for PM2.5 over the 30 days to 10 Dec 2025: Baden 22.6 µg/m³, Graz 16.2 µg/m³ and Linz 14.8 µg/m³.

  1. 1BadenLower Austria22.6
  2. 2GrazStyria16.2
  3. 3LinzUpper Austria14.8
  4. 4TraunUpper Austria14.5
  5. 5AmstettenLower Austria13.7
  6. 6WelsUpper Austria13.4
  7. 7Sankt ValentinLower Austria13.4
  8. 8Hainburg an der DonauLower Austria13.3
  9. 9VoitsbergStyria12.8
  10. 10TullnLower Austria12.8
  11. 11LienzTyrol12.8
  12. 12EnnsUpper Austria12.8
  13. 13Bruck an der MurStyria12.8
  14. 14AnsfeldenUpper Austria12.8
  15. 15KlosterneuburgLower Austria12.6
  16. 16EisenstadtBurgenland12.5
  17. 17WolfsbergCarinthia12.2
  18. 18MödlingLower Austria12.2
  19. 19SchwazTyrol12.0
  20. 20Sankt PöltenLower Austria11.8

+ 17 more cities, 11.7 µg/m³ and below

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.