SmogRank / Countries / Romania / Cluj County

Most polluted cities in Cluj County, Romania

2 measured cities, this year; 2 above the WHO annual guideline. Worst: Dej at 23.0 µg/m³, #203 in the world.

Estimated: cities without a monitor

Cluj County 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
Turda	≈ 10 µg/m³	Moderate
Câmpia Turzii	≈ 13 µg/m³	Moderate
Gherla	≈ 9 µg/m³	Good

Use this board

SmogRank, most polluted cities in Cluj County, Romania, PM2.5, this year to 2 Oct 2026, 00:00 UTC, smogrank.com/ro/region/cluj-county?w=year.

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.

Updated 2026-10-02 00:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.