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 17 Jan 2025: Manlleu 32.7 µg/m³, Molina de Segura 23.8 µg/m³ and Murcia 23.4 µg/m³.
- 1ManlleuCatalonia32.7
- 2Molina de SeguraMurcia23.8
- 3MurciaMurcia23.4
- 4OurenseGalicia21.5
- 5BailénAndalusia17.2
- 6VigoGalicia17.0
- 7SevillaAndalusia16.4
- 8San Sebastián de la GomeraCanary Islands15.3
- 9MaspalomasCanary Islands14.2
- 10AgüimesCanary Islands14.0
- 11Collado-VillalbaMadrid14.0
- 12VecindarioCanary Islands14.0
- 13LeónCastille and León13.9
- 14Torrejón de ArdozMadrid13.8
- 15San IsidroCanary Islands13.7
- 16HuelvaAndalusia13.7
- 17OviedoAsturias13.1
- 18IngenioCanary Islands12.9
- 19Puerto del RosarioCanary Islands12.6
- 20ValdemoroMadrid12.5
+ 84 more cities, the next at 12.4 µg/m³
Not counted on this day, too few days measured: Ciudad Real since 16 Jan 2025, Toledo since 15 Jan 2025, Mollet del Vallès since 14 Jan 2025 and 8 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 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.