SmogRank / World / Europe / Spain / Catalonia

Most polluted cities in Catalonia, Spain

No city in Catalonia, Spain has enough readings to rank so far this year.

26 monitors in Spain stopped reporting on 6 Oct, 05:00 Madrid time. Cities that rely on them are missing from the 24-hour board and may drop from the longer ones; that isn't clean air, and they return when the data does.

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Catalonia 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
L'Hospitalet de Llobregat	≈ 10 µg/m³	Moderate
Badalona	≈ 10 µg/m³	Moderate
Sabadell	≈ 10 µg/m³	Moderate
Santa Coloma de Gramenet	≈ 10 µg/m³	Moderate
Cornellà de Llobregat	≈ 10 µg/m³	Moderate
Sant Boi de Llobregat	≈ 10 µg/m³	Moderate
Sant Cugat del Vallès	≈ 10 µg/m³	Moderate
Rubí	≈ 10 µg/m³	Moderate
Castelldefels	≈ 9 µg/m³	Good
Viladecans	≈ 10 µg/m³	Moderate
El Prat de Llobregat	≈ 10 µg/m³	Moderate
Cerdanyola del Vallès	≈ 10 µg/m³	Moderate
Figueres	≈ 6 µg/m³	Good
Esplugues de Llobregat	≈ 10 µg/m³	Moderate
Gavà	≈ 10 µg/m³	Moderate
Llefià	≈ 10 µg/m³	Moderate
Sant Feliu de Llobregat	≈ 10 µg/m³	Moderate
Blanes	≈ 10 µg/m³	Moderate
Vic	≈ 6 µg/m³	Good
Ripollet	≈ 10 µg/m³	Moderate
Lloret de Mar	≈ 10 µg/m³	Moderate
Sant Adrià de Besòs	≈ 10 µg/m³	Moderate
El Vendrell	≈ 8 µg/m³	Good
Tortosa	≈ 5 µg/m³	Good
Olot	≈ 6 µg/m³	Good
Montcada i Reixac	≈ 10 µg/m³	Moderate
Cambrils	≈ 7 µg/m³	Good
Sant Joan Despí	≈ 10 µg/m³	Moderate
Barberà del Vallès	≈ 10 µg/m³	Moderate
Salt	≈ 7 µg/m³	Good
Sant Pere de Ribes	≈ 8 µg/m³	Good
Sant Vicenç dels Horts	≈ 10 µg/m³	Moderate
Sitges	≈ 9 µg/m³	Good
Premià de Mar	≈ 10 µg/m³	Moderate
Pineda de Mar	≈ 10 µg/m³	Moderate
Sant Andreu de la Barca	≈ 10 µg/m³	Moderate
Valls	≈ 7 µg/m³	Good
Santa Perpètua de Mogoda	≈ 10 µg/m³	Moderate
Calafell	≈ 8 µg/m³	Good
Molins de Rei	≈ 10 µg/m³	Moderate

Bad-air episodes in Catalonia

• North-eastern Spain and France, January 202614 January 2026, 1 day8 cities53 µg/m³peak, Manlleu
• North-eastern Spain and Andorra, November 202514 November 2025, 1 day13 cities65 µg/m³peak, Elda
• Spain, Portugal and Andorra, August 202510 to 22 August 2025, 13 days57 cities203 µg/m³peak, Ponferrada
• North-eastern Spain, June 202514 June 2025, 1 day14 cities31 µg/m³peak, Murcia
• Europe, 14 February to 1 March 202516 days619 cities178 µg/m³peak, Krotoszyn
• Europe, 1 to 14 February 202514 days628 cities179 µg/m³peak, Banja Luka

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.