SmogRank / History / City race
Cities in Spain, worst air first, day by day
Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.
The worst cities in Spain for PM2.5 over the 30 days to 16 Jul 2025: Ourense 18.0 µg/m³, Fuenlabrada 17.9 µg/m³ and Manlleu 15.4 µg/m³.
- 1OurenseGalicia18.0
- 2FuenlabradaMadrid17.9
- 3ManlleuCatalonia15.4
- 4CosladaMadrid15.3
- 5Mollet del VallèsCatalonia14.8
- 6Santa LucíaCanary Islands14.4
- 7ZumarragaBasque Country14.3
- 8LorcaMurcia14.1
- 9ValenciaValencia13.9
- 10MurciaMurcia13.8
- 11CandelariaCanary Islands13.8
- 12AlcantarillaMurcia13.6
- 13LleidaCatalonia13.4
- 14El PlanMurcia13.3
- 15Barrio de PeralMurcia13.3
- 16BurgosCastille and León13.3
- 17ValdemoroMadrid13.1
- 18San IsidroCanary Islands12.8
- 19Torrejón de ArdozMadrid12.8
- 20BarcelonaCatalonia12.8
+ 92 more cities, 12.5 µg/m³ and below
Not counted on this day, too few days measured: Gijón since 17 Jun 2025, Móstoles since 15 Jun 2025 and Logroño since 14 Jun 2025.
Cities counted each day
A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.
Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites. We are building the reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.