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.
The worst cities in Austria for PM2.5 over the 30 days to 21 Apr 2023: Wolfsberg 9.5 µg/m³, Traun 9.5 µg/m³ and Mistelbach 9.2 µg/m³.
- 1WolfsbergCarinthia9.5
- 2TraunUpper Austria9.5
- 3MistelbachLower Austria9.2
- 4KlosterneuburgLower Austria9.1
- 5GrazStyria8.7
- 6WeizStyria8.5
- 7TullnLower Austria8.5
- 8LinzUpper Austria8.5
- 9Sankt ValentinLower Austria8.3
- 10Attnang-PuchheimUpper Austria8.2
- 11PerchtoldsdorfLower Austria7.9
- 12MödlingLower Austria7.9
- 13Klagenfurt am WörtherseeCarinthia7.9
- 14AmstettenLower Austria7.9
- 15WelsUpper Austria7.8
- 16Sankt PöltenLower Austria7.8
- 17LeibnitzStyria7.8
- 18ViennaVienna7.5
- 19FreistadtUpper Austria6.9
- 20SteyrUpper Austria6.8
+ 3 more cities, 6.6 µg/m³ and below
Not counted on this day, too few days measured: Saalfelden am Steinernen Meer since 30 Mar 2023, Innsbruck since 30 Mar 2023, Baden since 30 Mar 2023 and Ansfelden since 30 Mar 2023. Days missing from the source archive fall in this window, so fewer countries are counted.
Cities counted each 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.