SmogRank / World / Finland / February 2023

Most polluted cities in Finland, February 2023

13 cities in Finland ranked by their average PM2.5 over the 28 days. Worst: Helsinki at 6.4 µg/m³, #1,042 of 1,175 cities in the world. Cleanest: Vaasa at 2.6. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 25 of these 28 days. Cities in the United States and Europe have them from the EPA's and the European Environment Agency's own records of the same monitors; many cities elsewhere are missing from this board, not clean. Why.

← Helsinki 6.4
Every city in Finland ranked for February 2023, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1HelsinkiUusimaa
    36
  2. 2MyyrmäkiUusimaa
    35
  3. 3VantaaUusimaa
    33
  4. 4LappeenrantaSouth Karelia
    33
  5. 4KuopioNorth Savo
    33
  6. 6PoriSatakunta
    32
  7. 7OuluNorth Ostrobothnia
    31
  8. 8JyväskyläCentral Finland
    30
  9. 9LohjaUusimaa
    28
  10. 9LahtiPaijat-Hame
    28
  11. 11TamperePirkanmaa
    26
  12. 12KlaukkalaUusimaa
    22
  13. 13VaasaOstrobothnia
    14
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, February 2023 · Finland now

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SmogRank, most polluted cities in Finland, PM2.5, February 2023, smogrank.com/fi/history/2023-02 (accessed 2 Oct 2026).

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