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 12 Jan 2025: Manlleu 32.6 µg/m³, Molina de Segura 24.1 µg/m³ and Murcia 23.9 µg/m³.
- 1ManlleuCatalonia32.6
- 2Molina de SeguraMurcia24.1
- 3MurciaMurcia23.9
- 4OurenseGalicia22.0
- 5San Sebastián de la GomeraCanary Islands21.5
- 6MaspalomasCanary Islands20.4
- 7LleidaCatalonia20.2
- 8AgüimesCanary Islands19.5
- 9VecindarioCanary Islands19.5
- 10GironaCatalonia18.6
- 11IngenioCanary Islands18.5
- 12San IsidroCanary Islands18.0
- 13VigoGalicia17.6
- 14BailénAndalusia17.0
- 15Puerto del RosarioCanary Islands16.4
- 16Santa Cruz de TenerifeCanary Islands16.0
- 17SevillaAndalusia15.9
- 18Mollet del VallèsCatalonia15.9
- 19CandelariaCanary Islands15.1
- 20Collado-VillalbaMadrid14.9
+ 94 more cities, 14.6 µg/m³ and below
Not counted on this day, too few days measured: Jaén since 11 Jan 2025, León since 10 Jan 2025, Melilla since 9 Jan 2025 and 3 more cities.
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.