SmogRank / Countries / Iceland / January 2026

Most polluted cities in Iceland, January 2026

3 cities in Iceland ranked by their average PM2.5 over the 31 days. Worst: Hafnarfjörður at 9.7 µg/m³, #800 of 2,047 cities in the world. Cleanest: Kópavogur at 2.3. A city needs measurements on 70% of the days to be ranked.

  1. 1HafnarfjörðurCapital Region
    9.7
  2. 2ReykjavíkCapital Region
    3.8
  3. 3KópavogurCapital Region
    2.3
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 2026 · Iceland now