SmogRank / Cleaner or dirtier / Spain
Spain: cleaner or dirtier, 2025
In Spain, 16 cities have enough days in both years to compare 2025 with the same days of 2024: 12 got dirtier and 4 cleaner.
The 12 cities that got dirtier, biggest rise first
| # | City | 2024 | 2025 | Change |
|---|---|---|---|---|
| 1 | SaguntoValencia, Spain | 26 | 46 | +3.6 µg/m³+77% |
| 2 | Castelló de la PlanaValencia, Spain | 29 | 41 | +2.1 µg/m³+40% |
| 3 | BurgosCastille and León, Spain | 38 | 47 | +1.6 µg/m³+23% |
| 4 | ManlleuCatalonia, Spain | 64 | 67 | +1.4 µg/m³+9% |
| 5 | ValenciaSpain | 54 | 56 | +1.1 µg/m³+10% |
| 6 | EldaValencia, Spain | 29 | 35 | +1.1 µg/m³+21% |
| 7 | OviedoAsturias, Spain | 52 | 54 | +0.7 µg/m³+7% |
| 8 | SamaAsturias, Spain | 52 | 53 | +0.5 µg/m³+5% |
| 9 | El PlanMurcia, Spain | 53 | 54 | +0.2 µg/m³+2% |
| 10 | Barrio de PeralMurcia, Spain | 53 | 54 | +0.2 µg/m³+2% |
| 11 | MurciaSpain | 62 | 62 | +0.1 µg/m³+1% |
| 12 | MadridSpain | 47 | 48 | +0.1 µg/m³+1% |
The 4 cities that got cleaner, biggest fall first
| # | City | 2024 | 2025 | Change |
|---|---|---|---|---|
| 1 | LugoGalicia, Spain | 51 | 43 | −1.6 µg/m³−17% |
| 2 | A CoruñaGalicia, Spain | 51 | 44 | −1.1 µg/m³−12% |
| 3 | CartagenaMurcia, Spain | 54 | 52 | −0.8 µg/m³−8% |
| 4 | Santiago de CompostelaGalicia, Spain | 39 | 37 | −0.4 µg/m³−6% |
Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
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
Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.