SmogRank / World / Estonia / October 2025

Most polluted cities in Estonia, October 2025

No city in Estonia had measurements on 70% of the days, so October 2025 has no board for Estonia.

Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, October 2025 · Estonia now