SmogRank / World / Europe / Estonia / Harjumaa

Most polluted cities in Harjumaa, Estonia

1 measured city, last 7 days; 0 above the WHO 24-hour guideline. Worst: Tallinn at 3.1 µg/m³, #2,187 in the world.

Harjumaa: 1 measured city#1 Tallinn: 3.1 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Tallinn 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+

Estimated: cities without a monitor

Harjumaa 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.

City7-day estimateBand
Maardu≈ 4 µg/m³Good

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SmogRank, most polluted cities in Harjumaa, Estonia, PM2.5, last 7 days to 2 Oct 2026, 01:00 UTC, smogrank.com/ee/region/harjumaa?w=7d.

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Updated 2026-10-02 01:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.