SmogRank / World / Europe / Spain / Catalonia

Most polluted cities in Catalonia, Spain

2 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Manlleu at 11.4 µg/m³, #504 in the world.

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.

Use this board

SmogRank, most polluted cities in Catalonia, Spain, PM2.5, last 30 days to 6 Oct 2026, 23:00 UTC, smogrank.com/es/region/catalonia?w=30d.

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

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.