Most polluted cities in Estonia, May 2025

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

Good0–9.0

Moderate9.1–35.4

Sensitive groups35.5–55.4

Unhealthy55.5–125.4

Very unhealthy125.5–225.4

Hazardous225.5+