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 22 Sep 2023: Coslada 19.3 µg/m³, Cuenca 14.9 µg/m³ and La Línea de la Concepción 12.9 µg/m³.
- 1CosladaMadrid19.3
- 2CuencaCastille-La Mancha14.9
- 3La Línea de la ConcepciónAndalusia12.9
- 4MóstolesMadrid12.8
- 5TorreviejaValencia11.3
- 6San RoqueAndalusia11.3
- 7ValdemoroMadrid10.9
- 8DurangoBasque Country10.7
- 9BilbaoBasque Country10.4
- 10Collado-VillalbaMadrid10.2
- 11Laudio / LlodioBasque Country10.1
- 12Alcalá de HenaresMadrid10.1
- 13PalmaBalearic Islands10.0
- 14BeasainBasque Country10.0
- 15SevillaAndalusia9.8
- 16Gasteiz / VitoriaBasque Country9.7
- 17AzpeitiaBasque Country9.7
- 18MadridMadrid9.4
- 19AlfaroLa Rioja9.1
- 20Villarejo de SalvanésMadrid9.0
+ 59 more cities, 9.0 µg/m³ and below
Not counted on this day, too few days measured: Valladolid since 19 Sep 2023, Burela de Cabo since 5 Sep 2023, Huelva since 26 Aug 2023 and 10 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.