SmogRank / Countries / Austria / September 2026

Most polluted cities in Austria, September 2026

21 cities in Austria ranked by their average PM2.5 over the 30 days. Worst: Graz at 8.4 µg/m³, #565 of 2,332 cities in the world. Cleanest: Dornbirn at 3.5. A city needs measurements on 70% of the days to be ranked.

  1. 1GrazStyria
    8.4
  2. 2WolfsbergCarinthia
    7.9
  3. 3AnsfeldenUpper Austria
    7.2
  4. 4LinzUpper Austria
    6.5
  5. 5EisenzickenBurgenland
    6.4
  6. 6InnsbruckTyrol
    6.3
  7. 7TraunUpper Austria
    6.2
  8. 8Klagenfurt am WörtherseeCarinthia
    6.1
  9. 8AmstettenLower Austria
    6.1
  10. 10KlosterneuburgLower Austria
    5.8
  11. 11WelsUpper Austria
    5.7
  12. 11SalzburgSalzburg
    5.7
  13. 13Sankt PöltenLower Austria
    5.6
  14. 14PerchtoldsdorfLower Austria
    5.5
  15. 15Wiener NeustadtLower Austria
    5.4
  16. 16SteyrUpper Austria
    5.3
  17. 17MödlingLower Austria
    5.2
  18. 18ViennaVienna
    5.0
  19. 19LustenauVorarlberg
    3.6
  20. 20Saalfelden am Steinernen MeerSalzburg
    3.5
  21. 20DornbirnVorarlberg
    3.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, September 2026 · Austria now