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 8 Feb 2026: Ourense 21.2 µg/m³, Manlleu 19.7 µg/m³ and Molina de Segura 13.9 µg/m³.
- 1OurenseGalicia21.2
- 2ManlleuCatalonia19.7
- 3Molina de SeguraMurcia13.9
- 4MurciaMurcia13.4
- 5LogroñoLa Rioja12.8
- 6Alcalá de GuadairaAndalusia11.2
- 7Santa LucíaCanary Islands10.2
- 8CampillosAndalusia9.2
- 9GijónAsturias9.2
- 10SalamancaCastille and León9.1
- 11AlcantarillaMurcia8.8
- 12SamaAsturias8.8
- 13San RoqueAndalusia8.7
- 14CandelariaCanary Islands8.5
- 15VigoGalicia8.5
- 16FerrolGalicia8.5
- 17BailénAndalusia8.3
- 18A CoruñaGalicia8.2
- 19BurrianaValencia8.1
- 20Santiago de CompostelaGalicia8.1
+ 77 more cities, 7.9 µg/m³ and below
Not counted on this day, too few days measured: Vilanova i la Geltrú since 14 Jan 2026, Mollet del Vallès since 14 Jan 2026, Lleida since 14 Jan 2026 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 readers for them. Most cities there are missing from this board, not clean. Why.