Wels reports an annual PM2.5 of 10.0 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Compared across Austria
Wels: 10.0 µg/m³. Typical range in Austria: 8.6–10.4 µg/m³. Low anchor: Dornbirn, 7.9 µg/m³. High anchor: Graz, 11.7 µg/m³.
23 cities tracked