SmogRank / Countries / Finland / July 2026
Most polluted cities in Finland, July 2026
12 cities in Finland ranked by their average PM2.5 over the 31 days. Worst: Helsinki at 5.5 µg/m³, #2,048 of 2,262 cities in the world. Cleanest: Tampere at 3.5. A city needs measurements on 70% of the days to be ranked.
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+