SmogRank / Countries / Andorra

Most polluted cities in Andorra

1 measured city ranked by PM2.5, last 30 days. Worst: les Escaldes at 6.9 µg/m³, #897 in the world.

#City µg/m³
1les Escaldes Escaldes-Engordany
6.9
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Andorra 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
Andorra la Vella estimated≈ 6 µg/m³Good

Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.