SmogRank / Countries / Estonia

Most polluted cities in Estonia

4 measured cities, this year; 2 above the WHO annual guideline. Worst: Tartu at 5.6 µg/m³, #2,015 in the world.

Estimated: cities without a monitor

Estonia cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
Pärnu	≈ 5 µg/m³	Good
Viljandi	≈ 4 µg/m³	Good
Maardu	≈ 4 µg/m³	Good

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SmogRank, most polluted cities in Estonia, PM2.5, this year to 1 Oct 2026, 23:00 UTC, smogrank.com/ee?w=year.

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Regions

Measured cities in each region (30 days).

Updated 2026-10-01 23:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.