SmogRank / Countries / Switzerland / August 2023
Most polluted cities in Switzerland, August 2023
5 cities in Switzerland ranked by their average PM2.5 over the 31 days. Worst: Bern at 8.1 µg/m³, #783 of 1,670 cities in the world. Cleanest: Basel at 6.6. A city needs measurements on 70% of the days to be ranked.
- 1BernBern 8.1
- 2BellinzonaTicino 7.8
- 3ZürichZurich 7.0
- 3LuganoTicino 7.0
- 5BaselBasel-City 6.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+