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 26 Aug 2023: Cuenca 15.0 µg/m³, Alcalá de Henares 14.7 µg/m³ and Santa Cruz de Tenerife 14.6 µg/m³.
- 1CuencaCastille-La Mancha15.0
- 2Alcalá de HenaresMadrid14.7
- 3Santa Cruz de TenerifeCanary Islands14.6
- 4La OrotavaCanary Islands14.4
- 5ArrecifeCanary Islands13.7
- 6San RoqueAndalusia13.5
- 7PalenciaCastille and León10.7
- 8CandelariaCanary Islands10.4
- 9MadridMadrid9.9
- 10ToledoCastille-La Mancha9.7
- 11Villarejo de SalvanésMadrid9.6
- 12VigoGalicia9.6
- 13Gasteiz / VitoriaBasque Country9.4
- 14BurgosCastille and León9.1
- 15TorreviejaValencia8.6
- 16BilbaoBasque Country8.6
- 17Puerto del RosarioCanary Islands8.5
- 18CeeGalicia8.4
- 19BeasainBasque Country8.4
- 20BermeoBasque Country7.9
+ 25 more cities, the next at 7.8 µg/m³
Not counted on this day, too few days measured: Las Palmas de Gran Canaria since 26 Aug 2023, La Línea de la Concepción since 26 Aug 2023, Huelva since 26 Aug 2023 and 38 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.