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 to10 Dec 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 10 Dec 2025: Manlleu 28.6 µg/m³, Ourense 21.6 µg/m³ and Mollet del Vallès 15.8 µg/m³.

  1. 1ManlleuCatalonia28.6
  2. 2OurenseGalicia21.6
  3. 3Mollet del VallèsCatalonia15.8
  4. 4LleidaCatalonia15.3
  5. 5MurciaMurcia13.0
  6. 6Collado-VillalbaMadrid12.6
  7. 7GironaCatalonia12.4
  8. 8ArucasCanary Islands11.7
  9. 9San IsidroCanary Islands11.6
  10. 10Molina de SeguraMurcia11.6
  11. 11PalenciaCastille and León10.6
  12. 12San Sebastián de la GomeraCanary Islands10.3
  13. 13Las Palmas de Gran CanariaCanary Islands9.8
  14. 14AlcantarillaMurcia9.6
  15. 15SamaAsturias9.6
  16. 16Santa Cruz de TenerifeCanary Islands9.5
  17. 17El PlanMurcia9.3
  18. 18Barrio de PeralMurcia9.3
  19. 19GijónAsturias9.3
  20. 20CartagenaMurcia9.1

+ 71 more cities, 8.9 µg/m³ and below

Not counted on this day, too few days measured: Logroño since 3 Dec 2025, Santa Lucía since 2 Dec 2025, Maspalomas since 2 Dec 2025 and 5 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.