SmogRank / Countries / Switzerland / April 2023

Most polluted cities in Switzerland, April 2023

5 cities in Switzerland ranked by their average PM2.5 over the 30 days. Worst: Lugano at 6.8 µg/m³, #857 of 1,251 cities in the world. Cleanest: Zürich at 5.6. A city needs measurements on 70% of the days to be ranked.

  1. 1LuganoTicino
    6.8
  2. 2BellinzonaTicino
    6.6
  3. 2BaselBasel-City
    6.6
  4. 4BernBern
    6.5
  5. 5ZürichZurich
    5.6
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, April 2023 · Switzerland now