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.
The worst cities in Spain for PM2.5 over the 30 days to 19 Feb 2024: Ourense 28.1 µg/m³, San Sebastián de la Gomera 27.0 µg/m³ and Manlleu 26.7 µg/m³.
- 1OurenseGalicia28.1
- 2San Sebastián de la GomeraCanary Islands27.0
- 3ManlleuCatalonia26.7
- 4MaspalomasCanary Islands25.8
- 5Mollet del VallèsCatalonia24.2
- 6Santa Cruz de TenerifeCanary Islands23.8
- 7Granadilla de AbonaCanary Islands22.9
- 8LleidaCatalonia22.7
- 9San IsidroCanary Islands22.5
- 10Las Palmas de Gran CanariaCanary Islands22.3
- 11La OrotavaCanary Islands22.1
- 12Santa Cruz de la PalmaCanary Islands21.5
- 13VigoGalicia21.0
- 14CandelariaCanary Islands19.9
- 15BailénAndalusia19.6
- 16AgüimesCanary Islands19.1
- 17Lomo de AricoCanary Islands19.0
- 18MurciaMurcia18.9
- 19PuertollanoCastille-La Mancha18.8
- 20VecindarioCanary Islands18.8
+ 101 more cities, 17.8 µg/m³ and below
Not counted on this day, too few days measured: Córdoba since 9 Jan 2024. Days missing from the source archive fall in this window, so fewer countries are counted.
Cities counted each 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.