SmogRank / Countries / Estonia / May 2026

Most polluted cities in Estonia, May 2026

4 cities in Estonia ranked by their average PM2.5 over the 31 days. Worst: Tallinn at 3.8 µg/m³, #2,108 of 2,243 cities in the world. Cleanest: Kohtla-Järve at 3.1. A city needs measurements on 70% of the days to be ranked.

  1. 1TallinnHarjumaa
    3.8
  2. 2NarvaIda-Virumaa
    3.4
  3. 3TartuTartu
    3.2
  4. 4Kohtla-JärveIda-Virumaa
    3.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, May 2026 · Estonia now