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 to24 Dec 2023 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 24 Dec 2023: Manlleu 36.0 µg/m³, Ourense 27.6 µg/m³ and Mollet del Vallès 21.3 µg/m³.

  1. 1ManlleuCatalonia36.0
  2. 2OurenseGalicia27.6
  3. 3Mollet del VallèsCatalonia21.3
  4. 4LleidaCatalonia19.1
  5. 5BailénAndalusia18.9
  6. 6MurciaMurcia18.4
  7. 7Lomo de AricoCanary Islands17.4
  8. 8ValdemoroMadrid17.2
  9. 9San Sebastián de la GomeraCanary Islands16.8
  10. 10SevillaAndalusia16.2
  11. 11VigoGalicia16.2
  12. 12Santa Cruz de TenerifeCanary Islands15.9
  13. 13Las Palmas de Gran CanariaCanary Islands15.7
  14. 14MaspalomasCanary Islands15.3
  15. 15GironaCatalonia14.8
  16. 16CórdobaAndalusia14.3
  17. 17ArrecifeCanary Islands13.9
  18. 18Collado-VillalbaMadrid13.6
  19. 19GranadaAndalusia13.4
  20. 20ArucasCanary Islands13.4

+ 86 more cities, the next at 13.4 µg/m³

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 reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.