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 Apr 2025 That day's board

The worst cities in Austria for PM2.5 over the 30 days to 10 Apr 2025: Traun 12.6 µg/m³, Hainburg an der Donau 12.5 µg/m³ and Sankt Valentin 12.1 µg/m³.

  1. 1TraunUpper Austria12.6
  2. 2Hainburg an der DonauLower Austria12.5
  3. 3Sankt ValentinLower Austria12.1
  4. 4EnnsUpper Austria12.1
  5. 5AnsfeldenUpper Austria12.1
  6. 6AmstettenLower Austria12.0
  7. 7TullnLower Austria11.9
  8. 8WelsUpper Austria11.7
  9. 9Attnang-PuchheimUpper Austria11.7
  10. 10KlosterneuburgLower Austria11.6
  11. 11Sankt PöltenLower Austria11.5
  12. 12LinzUpper Austria11.1
  13. 13ViennaVienna10.7
  14. 14EisenstadtBurgenland10.4
  15. 15Groß-EnzersdorfLower Austria10.0
  16. 16PerchtoldsdorfLower Austria9.9
  17. 17SteyrUpper Austria9.8
  18. 18MödlingLower Austria9.7
  19. 19LeibnitzStyria9.7
  20. 20EisenzickenBurgenland9.2

+ 17 more cities, 8.9 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.