SmogRank / Countries / Finland / January 2025

Most polluted cities in Finland, January 2025

11 cities in Finland ranked by their average PM2.5 over the 31 days. Worst: Lappeenranta at 6.8 µg/m³, #1,389 of 1,937 cities in the world. Cleanest: Tampere at 3.3. A city needs measurements on 70% of the days to be ranked.

  1. 1LappeenrantaSouth Karelia
    6.8
  2. 2PoriSatakunta
    5.5
  3. 3VantaaUusimaa
    5.2
  4. 4HelsinkiUusimaa
    5.1
  5. 4MyyrmäkiUusimaa
    5.1
  6. 6LohjaUusimaa
    4.3
  7. 6LahtiPaijat-Hame
    4.3
  8. 8KuopioNorth Savo
    4.0
  9. 9JyväskyläCentral Finland
    3.9
  10. 10KlaukkalaUusimaa
    3.4
  11. 11TamperePirkanmaa
    3.3
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 2025 · Finland now

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SmogRank, most polluted cities in Finland, PM2.5, January 2025, smogrank.com/fi/history/2025-01 (accessed 2 Oct 2026).

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