SmogRank / Countries / Estonia / April 2026
Most polluted cities in Estonia, April 2026
4 cities in Estonia ranked by their average PM2.5 over the 30 days. Worst: Narva at 3.8 µg/m³, #2,154 of 2,283 cities in the world. Cleanest: Kohtla-Järve at 2.4. A city needs measurements on 70% of the days to be ranked.
- 1NarvaIda-Virumaa 3.8
- 2TallinnHarjumaa 3.1
- 3TartuTartu 2.9
- 4Kohtla-JärveIda-Virumaa 2.4
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+