SmogRank / Countries / Finland / March 2026

Most polluted cities in Finland, March 2026

12 cities in Finland ranked by their average PM2.5 over the 31 days. Worst: Myyrmäki at 11.9 µg/m³, #869 of 2,332 cities in the world. Cleanest: Oulu at 3.8. A city needs measurements on 70% of the days to be ranked.

  1. 1MyyrmäkiUusimaa
    11.9
  2. 2HelsinkiUusimaa
    10.6
  3. 3VantaaUusimaa
    10.5
  4. 4LohjaUusimaa
    10.1
  5. 5LahtiPaijat-Hame
    10.0
  6. 6PoriSatakunta
    8.5
  7. 7LappeenrantaSouth Karelia
    8.3
  8. 8KlaukkalaUusimaa
    8.2
  9. 9JyväskyläCentral Finland
    7.5
  10. 10KuopioNorth Savo
    7.0
  11. 11TamperePirkanmaa
    5.1
  12. 12OuluNorth Ostrobothnia
    3.8
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, March 2026 · Finland now