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.

CountriesCities
The 30 days to11 Jul 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 11 Jul 2025: Ourense 18.4 µg/m³, Coslada 16.7 µg/m³ and Manlleu 16.5 µg/m³.

  1. 1OurenseGalicia18.4
  2. 2CosladaMadrid16.7
  3. 3ManlleuCatalonia16.5
  4. 4Mollet del VallèsCatalonia16.4
  5. 5MurciaMurcia15.6
  6. 6ValenciaValencia15.4
  7. 7LorcaMurcia15.3
  8. 8AlcantarillaMurcia15.3
  9. 9LleidaCatalonia15.2
  10. 10El PlanMurcia15.1
  11. 11Barrio de PeralMurcia15.1
  12. 12BarcelonaCatalonia14.4
  13. 13BurgosCastille and León14.3
  14. 14Torrejón de ArdozMadrid14.1
  15. 15ValdemoroMadrid14.0
  16. 16Molina de SeguraMurcia13.8
  17. 17CartagenaMurcia13.8
  18. 18TorreviejaValencia13.2
  19. 19CandelariaCanary Islands13.0
  20. 20San IsidroCanary Islands12.8

+ 72 more cities, 12.7 µg/m³ and below

Not counted on this day, too few days measured: Miranda de Ebro since 1 Jul 2025, Sama since 27 Jun 2025, Oviedo since 27 Jun 2025 and 11 more cities.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that 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 readers for them. Most cities there are missing from this board, not clean. Why.