SmogRank / Countries / Finland / 2026

Most polluted cities in Finland, 2026

12 cities in Finland ranked by their average PM2.5 so far (273 of 365 days); 8 above the WHO annual guideline (5.0 µg/m³). Worst: Myyrmäki at 6.8 µg/m³, #1,813 of 2,181 cities in the world. Cleanest: Oulu at 4.2. A city needs measurements on 70% of the days to be ranked.

  1. 1MyyrmäkiUusimaa
    6.81.4×
  2. 2HelsinkiUusimaa
    6.61.3×
  3. 3PoriSatakunta
    6.21.2×
  4. 4VantaaUusimaa
    6.11.2×
  5. 5LohjaUusimaa
    5.81.2×
  6. 5LappeenrantaSouth Karelia
    5.81.2×
  7. 7LahtiPaijat-Hame
    5.31.1×
  8. 8KuopioNorth Savo
    5.11.0×
  9. 9JyväskyläCentral Finland
    4.91.0×
  10. 10KlaukkalaUusimaa
    4.70.9×
  11. 11TamperePirkanmaa
    4.30.9×
  12. 12OuluNorth Ostrobothnia
    4.20.8×
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, 2026 · Finland now