SmogRank / Countries / Bosnia and Herzegovina / September 2026

Most polluted cities in Bosnia and Herzegovina, September 2026

4 cities in Bosnia and Herzegovina ranked by their average PM2.5 over the 30 days. Worst: Trebinje at 16.3 µg/m³, #211 of 2,332 cities in the world. Cleanest: Banja Luka at 11.6. A city needs measurements on 70% of the days to be ranked.

  1. 1TrebinjeSrpska
    16.3
  2. 2SarajevoFederation of B&H
    14.4
  3. 2PrijedorSrpska
    14.4
  4. 4Banja LukaSrpska
    11.6
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, September 2026 · Bosnia and Herzegovina now