SmogRank / Countries / Spain / Basque Country

Most polluted cities in Basque Country, Spain

13 measured cities ranked by PM2.5, last 30 days. Worst: Durango at 10.6 µg/m³, #368 in the world.

#City µg/m³
1Durango Basque Country
10.6
2Gasteiz / Vitoria Basque Country
10.3
3Oria Basque Country
9.6
4Bilbao Basque Country
9.5
5Zarautz Basque Country
9.3
6Laudio / Llodio Basque Country
9.3
7Amorebieta Basque Country
9.0
8Tolosa Basque Country
8.1
9Getxo Basque Country
7.9
10Hernani Basque Country
7.8
11Donostia / San Sebastián Basque Country
7.7
12Santurtzi Basque Country
7.1
13Bermeo Basque Country
5.5
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

Basque Country 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
Barakaldo estimated≈ 12 µg/m³Moderate
Irun estimated≈ 9 µg/m³Good
Santutxu estimated≈ 12 µg/m³Moderate
Portugalete estimated≈ 9 µg/m³Moderate
Basauri estimated≈ 12 µg/m³Moderate
Errenteria estimated≈ 10 µg/m³Moderate
Leioa estimated≈ 12 µg/m³Moderate
Galdakao estimated≈ 12 µg/m³Moderate
Sestao estimated≈ 9 µg/m³Moderate
Eibar estimated≈ 11 µg/m³Moderate
Erandio estimated≈ 12 µg/m³Moderate
Arrasate / Mondragón estimated≈ 11 µg/m³Moderate
Lasarte estimated≈ 10 µg/m³Moderate
Hondarribia estimated≈ 9 µg/m³Good
Ermua estimated≈ 11 µg/m³Moderate
Gernika-Lumo estimated≈ 12 µg/m³Moderate
Mungia estimated≈ 12 µg/m³Moderate
Pasaia estimated≈ 10 µg/m³Moderate

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