SmogRank / World / Finland / October 2026

Most polluted cities in Finland, October 2026

10 cities in Finland ranked by their average PM2.5 so far (1 of 31 days). Worst: Myyrmäki at 10.5 µg/m³, #576 of 1,630 cities in the world. Cleanest: Oulu at 2.9. A city needs measurements on 70% of the days to be ranked.

← Myyrmäki 10.5 µg/m³ 20 µg/m³0
Every city in Finland ranked for October 2026, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1MyyrmäkiUusimaa
    54
  2. 2PoriSatakunta
    47
  3. 3HelsinkiUusimaa
    43
  4. 4VantaaUusimaa
    34
  5. 5LappeenrantaSouth Karelia
    28
  6. 6KlaukkalaUusimaa
    26
  7. 7TamperePirkanmaa
    23
  8. 8LahtiPaijat-Hame
    22
  9. 9JyväskyläCentral Finland
    20
  10. 10OuluNorth Ostrobothnia
    16
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, October 2026 · Finland now

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SmogRank, most polluted cities in Finland, PM2.5, October 2026 (so far), smogrank.com/fi/history/2026-10 (accessed 2 Oct 2026).

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