SmogRank / World / Spain / January 2023

Most polluted cities in Spain, January 2023

35 cities in Spain ranked by their average PM2.5 over the 31 days. Worst: Valdemoro at 14.4 µg/m³, #166 of 993 cities in the world. Cleanest: Castelló de la Plana at 3.3. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 7 of these 31 days. Cities in the United States and Europe have them from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.

← Valdemoro 14.4 µg/m³ 20 µg/m³0
Every city in Spain ranked for January 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1ValdemoroMadrid
    61
  2. 2CartagenaMurcia
    59
  3. 3ArucasCanary Islands
    57
  4. 4TorreviejaValencia
    56
  5. 5OviedoAsturias
    56
  6. 6Santa Cruz de TenerifeCanary Islands
    55
  7. 7Collado-VillalbaMadrid
    55
  8. 8VigoGalicia
    55
  9. 9Las Palmas de Gran CanariaCanary Islands
    55
  10. 10MóstolesMadrid
    54
  11. 11SamaAsturias
    53
  12. 12CosladaMadrid
    52
  13. 13Ciudad RealCastille-La Mancha
    51
  14. 14CuencaCastille-La Mancha
    49
  15. 15LugoGalicia
    47
  16. 15Alcalá de HenaresMadrid
    47
  17. 17MadridMadrid
    46
  18. 17A CoruñaGalicia
    46
  19. 19OurenseGalicia
    44
  20. 20ToledoCastille-La Mancha
    42
  21. 20ArrecifeCanary Islands
    42
  22. 22Torrejón de ArdozMadrid
    42
  23. 23La OrotavaCanary Islands
    41
  24. 24Santa Cruz de la PalmaCanary Islands
    38
  25. 24AlgeteMadrid
    38
  26. 26Puerto del RosarioCanary Islands
    38
  27. 26CandelariaCanary Islands
    38
  28. 28EldaValencia
    37
  29. 29BurrianaValencia
    34
  30. 30PalenciaCastille and León
    33
  31. 31Santiago de CompostelaGalicia
    32
  32. 32SalamancaCastille and León
    31
  33. 33FerrolGalicia
    30
  34. 34NarónGalicia
    28
  35. 35Castelló de la PlanaValencia
    18
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, January 2023 · Spain now

Use this board

SmogRank, most polluted cities in Spain, PM2.5, January 2023, smogrank.com/es/history/2023-01 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.