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 to19 Dec 2023 That day's board

The worst cities in Spain for PM2.5 over the 30 days to 19 Dec 2023: Manlleu 32.0 µg/m³, Ourense 26.4 µg/m³ and Mollet del Vallès 19.7 µg/m³.

  1. 1ManlleuCatalonia32.0
  2. 2OurenseGalicia26.4
  3. 3Mollet del VallèsCatalonia19.7
  4. 4Lomo de AricoCanary Islands18.1
  5. 5LleidaCatalonia18.1
  6. 6San Sebastián de la GomeraCanary Islands17.2
  7. 7MurciaMurcia17.0
  8. 8Santa Cruz de TenerifeCanary Islands16.4
  9. 9BailénAndalusia16.1
  10. 10VigoGalicia16.0
  11. 11Las Palmas de Gran CanariaCanary Islands15.8
  12. 12ValdemoroMadrid15.7
  13. 13MaspalomasCanary Islands14.9
  14. 14ArrecifeCanary Islands14.1
  15. 15SevillaAndalusia13.4
  16. 16CórdobaAndalusia13.1
  17. 17La OrotavaCanary Islands13.0
  18. 18ArucasCanary Islands13.0
  19. 19SamaAsturias13.0
  20. 20GironaCatalonia13.0

+ 87 more cities, 12.9 µg/m³ and below

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.