SmogRank / World / Europe / Spain / Madrid
Most polluted cities in Madrid, Spain
8 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Madrid at 9.3 µg/m³, #739 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.
About 0 people in this city breathed unhealthy air on an average day over the last 30 days.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
- 1Madridlast full day 1 Oct 0
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
Madrid 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 |
|---|---|
| Ciudad Lineal | ≈ 8 µg/m³ |
| Leganés | ≈ 8 µg/m³ |
| Getafe | ≈ 8 µg/m³ |
| Alcorcón | ≈ 7 µg/m³ |
| Chamartín | ≈ 8 µg/m³ |
| Alcobendas | ≈ 8 µg/m³ |
| Parla | ≈ 8 µg/m³ |
| Las Rozas de Madrid | ≈ 7 µg/m³ |
| Pozuelo de Alarcón | ≈ 7 µg/m³ |
| San Sebastián de los Reyes | ≈ 8 µg/m³ |
| Rivas-Vaciamadrid | ≈ 8 µg/m³ |
| Majadahonda | ≈ 7 µg/m³ |
| Aranjuez | ≈ 6 µg/m³ |
| Boadilla del Monte | ≈ 7 µg/m³ |
| Arganda | ≈ 8 µg/m³ |
| Colmenar Viejo | ≈ 7 µg/m³ |
| Pinto | ≈ 8 µg/m³ |
| Tres Cantos | ≈ 7 µg/m³ |
| San Fernando de Henares | ≈ 8 µg/m³ |
| Galapagar | ≈ 7 µg/m³ |
| Arroyomolinos | ≈ 7 µg/m³ |
| Villaviciosa de Odón | ≈ 7 µg/m³ |
| Mejorada del Campo | ≈ 8 µg/m³ |
| Ciempozuelos | ≈ 6 µg/m³ |
| Torrelodones | ≈ 7 µg/m³ |
| Navalcarnero | ≈ 7 µg/m³ |
| El Goloso | ≈ 8 µg/m³ |
| San Martín de la Vega | ≈ 8 µg/m³ |
| Humanes de Madrid | ≈ 7 µg/m³ |
| San Lorenzo de El Escorial | ≈ 7 µg/m³ |
| Villanueva de la Cañada | ≈ 7 µg/m³ |
| El Escorial | ≈ 7 µg/m³ |
| Villanueva del Pardillo | ≈ 7 µg/m³ |
Bad-air episodes in Madrid
- North-eastern Spain, July 202628 July 2026, 1 day13 cities57 µg/m³peak, Villa del Prado
- Northern Spain, August 202526 to 27 August 2025, 2 days15 cities61 µg/m³peak, León
- Spain, Portugal and Andorra, August 202510 to 22 August 2025, 13 days57 cities203 µg/m³peak, Ponferrada
- Spain, December 202418 to 19 December 2024, 2 days9 cities49 µg/m³peak, Lleida
- Northern Spain, October 202430 to 31 October 2024, 2 days29 cities49 µg/m³peak, Villarejo de Salvanés
- Spain, April 20246 to 8 April 2024, 3 days25 cities63 µg/m³peak, Campillos
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 Madrid, Spain, PM2.5, last 30 days to 6 Oct 2026, 22:00 UTC, smogrank.com/es/region/madrid?w=30d.
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 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.