SmogRank / Countries / Switzerland / January 2024

Most polluted cities in Switzerland, January 2024

5 cities in Switzerland ranked by their average PM2.5 over the 31 days. Worst: Basel at 14.9 µg/m³, #335 of 1,960 cities in the world. Cleanest: Zürich at 9.5. A city needs measurements on 70% of the days to be ranked.

  1. 1BaselBasel-City
    14.9
  2. 2BellinzonaTicino
    13.9
  3. 3LuganoTicino
    12.8
  4. 4BernBern
    10.6
  5. 5ZürichZurich
    9.5
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, January 2024 · Switzerland now