SmogRank / Countries / Iceland / 2025

Most polluted cities in Iceland, 2025

3 cities in Iceland ranked by their average PM2.5 over the 365 days; 1 above the WHO annual guideline (5.0 µg/m³). Worst: Hafnarfjörður at 8.2 µg/m³, #1,340 of 2,131 cities in the world. Cleanest: Kópavogur at 2.6. A city needs measurements on 70% of the days to be ranked.

  1. 1HafnarfjörðurCapital Region
    8.21.6×
  2. 2ReykjavíkCapital Region
    3.90.8×
  3. 3KópavogurCapital Region
    2.60.5×
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, 2025 · Iceland now