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 to13 Dec 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 13 Dec 2025: Manlleu 29.9 µg/m³, Ourense 22.6 µg/m³ and Lleida 18.1 µg/m³.

  1. 1ManlleuCatalonia29.9
  2. 2OurenseGalicia22.6
  3. 3LleidaCatalonia18.1
  4. 4Mollet del VallèsCatalonia16.4
  5. 5MurciaMurcia14.1
  6. 6GironaCatalonia13.1
  7. 7Molina de SeguraMurcia12.9
  8. 8Collado-VillalbaMadrid11.9
  9. 9San IsidroCanary Islands11.7
  10. 10ArucasCanary Islands11.6
  11. 11AlcantarillaMurcia10.9
  12. 12GijónAsturias10.7
  13. 13San Sebastián de la GomeraCanary Islands10.6
  14. 14SamaAsturias10.0
  15. 15Las Palmas de Gran CanariaCanary Islands9.9
  16. 16BurrianaValencia9.6
  17. 17El PlanMurcia9.4
  18. 18Barrio de PeralMurcia9.4
  19. 19PalenciaCastille and León9.4
  20. 20BeasainBasque Country9.4

+ 72 more cities, 9.3 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 4 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.