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 Nov 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 13 Nov 2025: Ourense 16.6 µg/m³, Manlleu 14.6 µg/m³ and Logroño 14.6 µg/m³.

  1. 1OurenseGalicia16.6
  2. 2ManlleuCatalonia14.6
  3. 3LogroñoLa Rioja14.6
  4. 4GijónAsturias14.0
  5. 5Collado-VillalbaMadrid11.3
  6. 6Mollet del VallèsCatalonia10.9
  7. 7MurciaMurcia10.7
  8. 8LleidaCatalonia10.5
  9. 9ZumarragaBasque Country10.1
  10. 10PalenciaCastille and León10.0
  11. 11BurrianaValencia9.3
  12. 12AlcantarillaMurcia9.1
  13. 13AvilésAsturias9.1
  14. 14Torrejón de ArdozMadrid8.8
  15. 15Molina de SeguraMurcia8.4
  16. 16El PlanMurcia8.4
  17. 17Barrio de PeralMurcia8.4
  18. 18ArucasCanary Islands8.4
  19. 19SamaAsturias8.3
  20. 20ZaragozaAragon8.2

+ 87 more cities, 8.1 µg/m³ and below

Not counted on this day, too few days measured: San Roque since 15 Oct 2025, Córdoba since 12 Oct 2025, Jaén since 6 Oct 2025 and 7 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.