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 to14 Sep 2025 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 14 Sep 2025: Ponferrada 30.6 µg/m³, Lorca 19.6 µg/m³ and León 18.6 µg/m³.

  1. 1PonferradaCastille and León30.6
  2. 2LorcaMurcia19.6
  3. 3LeónCastille and León18.6
  4. 4OurenseGalicia18.2
  5. 5ManzanaresCastille-La Mancha17.5
  6. 6JaénAndalusia17.4
  7. 7Santa LucíaCanary Islands17.3
  8. 8FuenlabradaMadrid16.6
  9. 9LogroñoLa Rioja16.1
  10. 10JumillaMurcia16.0
  11. 11AlcantarillaMurcia16.0
  12. 12MurciaMurcia15.9
  13. 13MóstolesMadrid15.6
  14. 14Molina de SeguraMurcia15.3
  15. 15ValdemoroMadrid15.2
  16. 16El PlanMurcia14.9
  17. 17Barrio de PeralMurcia14.9
  18. 18AgüimesCanary Islands14.6
  19. 19VecindarioCanary Islands14.6
  20. 20ValenciaValencia13.9

+ 96 more cities, 13.5 µg/m³ and below

Not counted on this day, too few days measured: Sevilla since 11 Sep 2025, Huelva since 27 Aug 2025 and Cártama since 9 Aug 2025.

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.