SmogRank / World / Austria / December 2025

Most polluted cities in Austria, December 2025

19 cities in Austria ranked by their average PM2.5 over the 31 days. Worst: Graz at 19.5 µg/m³, #575 of 2,638 cities in the world. Cleanest: Saalfelden am Steinernen Meer at 8.8. A city needs measurements on 70% of the days to be ranked.

← Graz 19.5 µg/m³ 20 µg/m³0
Every city in Austria ranked for December 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. 1GrazStyria
    28
  2. 2InnsbruckTyrol
    21
  3. 3LinzUpper Austria
    20
  4. 4EisenzickenBurgenland
    20
  5. 5WolfsbergCarinthia
    20
  6. 6TraunUpper Austria
    19
  7. 7KlosterneuburgLower Austria
    19
  8. 8AmstettenLower Austria
    18
  9. 9WelsUpper Austria
    18
  10. 9AnsfeldenUpper Austria
    18
  11. 11ViennaVienna
    18
  12. 12Klagenfurt am WörtherseeCarinthia
    18
  13. 13MödlingLower Austria
    17
  14. 14PerchtoldsdorfLower Austria
    17
  15. 15Sankt PöltenLower Austria
    16
  16. 16BadenLower Austria
    16
  17. 17SteyrUpper Austria
    16
  18. 18SalzburgSalzburg
    16
  19. 19Saalfelden am Steinernen MeerSalzburg
    13
Excellent0–50
Good51–100
Lightly polluted101–150
Moderately polluted151–200
Heavily polluted201–300
Severely polluted301+

China's Air Quality Index (HJ 633-2012), PM2.5 individual index. 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, December 2025 · Austria now

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SmogRank, most polluted cities in Austria, PM2.5, December 2025, smogrank.com/at/history/2025-12 (accessed 2 Oct 2026).

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