SmogRank / Countries / Estonia / February 2026
Most polluted cities in Estonia, February 2026
4 cities in Estonia ranked by their average PM2.5 over the 28 days. Worst: Tartu at 9.7 µg/m³, #1,097 of 2,251 cities in the world. Cleanest: Kohtla-Järve at 4.9. A city needs measurements on 70% of the days to be ranked.
- 1TartuTartu 9.7
- 1NarvaIda-Virumaa 9.7
- 3TallinnHarjumaa 7.0
- 4Kohtla-JärveIda-Virumaa 4.9
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+