SmogRank / World / Austria / April 2025

Most polluted cities in Austria, April 2025

17 cities in Austria ranked by their average PM2.5 over the 30 days. Worst: Traun at 9.6 µg/m³, #1,203 of 2,569 cities in the world. Cleanest: Innsbruck at 5.4. A city needs measurements on 70% of the days to be ranked.

← Traun 9.6 µg/m³ 20 µg/m³0
Every city in Austria ranked for April 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1TraunUpper Austria
    52
  2. 2AnsfeldenUpper Austria
    52
  3. 3WelsUpper Austria
    51
  4. 3GrazStyria
    51
  5. 5KlosterneuburgLower Austria
    51
  6. 6AmstettenLower Austria
    49
  7. 7ViennaVienna
    48
  8. 7LinzUpper Austria
    48
  9. 9Sankt PöltenLower Austria
    47
  10. 9EisenzickenBurgenland
    47
  11. 11PerchtoldsdorfLower Austria
    45
  12. 12Klagenfurt am WörtherseeCarinthia
    44
  13. 13MödlingLower Austria
    44
  14. 14SteyrUpper Austria
    41
  15. 15BadenLower Austria
    40
  16. 16SalzburgSalzburg
    36
  17. 17InnsbruckTyrol
    30
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, April 2025 · Austria now

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SmogRank, most polluted cities in Austria, PM2.5, April 2025, smogrank.com/at/history/2025-04 (accessed 2 Oct 2026).

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