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 Jun 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 11 Jun 2025: Ourense 18.2 µg/m³, Mollet del Vallès 13.9 µg/m³ and Móstoles 12.8 µg/m³.

  1. 1OurenseGalicia18.2
  2. 2Mollet del VallèsCatalonia13.9
  3. 3MóstolesMadrid12.8
  4. 4ValenciaValencia12.6
  5. 5OriaBasque Country12.3
  6. 6MaspalomasCanary Islands11.8
  7. 7ZumarragaBasque Country11.8
  8. 8ManlleuCatalonia11.7
  9. 9MurciaMurcia11.6
  10. 10El PlanMurcia11.3
  11. 11Barrio de PeralMurcia11.3
  12. 12GijónAsturias11.3
  13. 13CosladaMadrid11.1
  14. 14BeasainBasque Country10.7
  15. 15Gasteiz / VitoriaBasque Country10.5
  16. 16Laudio / LlodioBasque Country10.4
  17. 17San IsidroCanary Islands10.3
  18. 18AlcantarillaMurcia10.3
  19. 19San IldefonsoCastille and León10.3
  20. 20OviedoAsturias10.3

+ 82 more cities, 10.3 µg/m³ and below

Not counted on this day, too few days measured: San Roque since 10 Jun 2025, Córdoba since 7 Jun 2025, Fuenlabrada since 7 Jun 2025 and 8 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.