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 to14 Apr 2025 That day's board

The worst cities in Austria for PM2.5 over the 30 days to 14 Apr 2025: Traun 12.7 µg/m³, Hainburg an der Donau 12.4 µg/m³ and Enns 12.2 µg/m³.

  1. 1TraunUpper Austria12.7
  2. 2Hainburg an der DonauLower Austria12.4
  3. 3EnnsUpper Austria12.2
  4. 4AnsfeldenUpper Austria12.2
  5. 5Sankt ValentinLower Austria12.1
  6. 6WelsUpper Austria12.0
  7. 7AmstettenLower Austria11.8
  8. 8KlosterneuburgLower Austria11.7
  9. 9Attnang-PuchheimUpper Austria11.6
  10. 10TullnLower Austria11.5
  11. 11Sankt PöltenLower Austria11.3
  12. 12LinzUpper Austria11.3
  13. 13ViennaVienna10.7
  14. 14EisenstadtBurgenland10.5
  15. 15LeibnitzStyria10.3
  16. 16PerchtoldsdorfLower Austria10.1
  17. 17Groß-EnzersdorfLower Austria10.0
  18. 18SteyrUpper Austria9.8
  19. 19MödlingLower Austria9.8
  20. 20GrazStyria9.6

+ 17 more cities, 9.6 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.