SmogRank / Countries / Finland
Most polluted cities in Finland
10 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Myyrmäki at 10.5 µg/m³, #398 in the world.
9 good 1 moderate
Estimated: cities without a monitor
Finland cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Espoo | ≈ 4 µg/m³ |
| Turku | ≈ 4 µg/m³ |
| Joensuu | ≈ 3 µg/m³ |
| Kouvola | ≈ 3 µg/m³ |
| Vaasa | ≈ 4 µg/m³ |
| Hämeenlinna | ≈ 3 µg/m³ |
| Seinäjoki | ≈ 3 µg/m³ |
| Rovaniemi | ≈ 2 µg/m³ |
| Porvoo | ≈ 3 µg/m³ |
| Mikkeli | ≈ 3 µg/m³ |
| Salo | ≈ 4 µg/m³ |
| Kotka | ≈ 3 µg/m³ |
| Kokkola | ≈ 3 µg/m³ |
| Järvenpää | ≈ 4 µg/m³ |
| Nurmijärvi | ≈ 4 µg/m³ |
| Hyvinge | ≈ 3 µg/m³ |
| Tuusula | ≈ 4 µg/m³ |
| Kirkkonummi | ≈ 4 µg/m³ |
| Rauma | ≈ 3 µg/m³ |
| Kerava | ≈ 4 µg/m³ |
| Kaarina | ≈ 4 µg/m³ |
| Nokia | ≈ 3 µg/m³ |
| Kajaani | ≈ 2 µg/m³ |
| Kangasala | ≈ 3 µg/m³ |
| Ylöjärvi | ≈ 3 µg/m³ |
| Savonlinna | ≈ 2 µg/m³ |
| Vihti | ≈ 4 µg/m³ |
| Riihimäki | ≈ 3 µg/m³ |
| Raseborg | ≈ 4 µg/m³ |
| Raisio | ≈ 4 µg/m³ |
| Lempäälä | ≈ 3 µg/m³ |
| Imatra | ≈ 3 µg/m³ |
| Sastamala | ≈ 3 µg/m³ |
| Raahe | ≈ 4 µg/m³ |
| Sibbo | ≈ 4 µg/m³ |
| Karhula | ≈ 3 µg/m³ |
| Hollola | ≈ 3 µg/m³ |
| Siilinjärvi | ≈ 3 µg/m³ |
| Pirkkala | ≈ 3 µg/m³ |
| Mäntsälä | ≈ 3 µg/m³ |
Regions
Measured cities in each region (30 days).
Updated 2026-10-01 21:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.