SmogRank / Countries / Switzerland / October 2023

Most polluted cities in Switzerland, October 2023

5 cities in Switzerland ranked by their average PM2.5 over the 31 days. Worst: Lugano at 9.5 µg/m³, #300 of 1,686 cities in the world. Cleanest: Zürich at 7.6. A city needs measurements on 70% of the days to be ranked.

  1. 1LuganoTicino
    9.5
  2. 2BellinzonaTicino
    8.8
  3. 3BernBern
    8.6
  4. 4BaselBasel-City
    7.9
  5. 5ZürichZurich
    7.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, October 2023 · Switzerland now