SmogRank / World / Chile / December 2023

Most polluted cities in Chile, December 2023

40 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Santiago at 26.2 µg/m³, #83 of 1,917 cities in the world. Cleanest: Alto Hospicio at 14.0. A city needs measurements on 70% of the days to be ranked.

← Santiago 26.2 µg/m³ 20 µg/m³0
Every city in Chile ranked for December 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. 1SantiagoSantiago Metropolitan
    83
  2. 2Puente AltoSantiago Metropolitan
    77
  3. 3QuinteroValparaiso
    74
  4. 4AricaArica y Parinacota Region
    73
  5. 5TocopillaAntofagasta
    72
  6. 6Puerto VarasLos Lagos Region
    71
  7. 7Viña del MarValparaiso
    71
  8. 8QuillotaValparaiso
    70
  9. 9HualpénBiobio
    70
  10. 10RengoO'Higgins Region
    70
  11. 11RancaguaO'Higgins Region
    70
  12. 12CoyhaiqueAysén
    69
  13. 13NacimientoBiobio
    68
  14. 14CoquimboCoquimbo Region
    68
  15. 14ConcónValparaiso
    68
  16. 16HualquiBiobio
    67
  17. 17CoronelBiobio
    67
  18. 18ToméBiobio
    67
  19. 18San Pedro de la PazBiobio
    67
  20. 20TalcahuanoBiobio
    66
  21. 20CuricóMaule Region
    66
  22. 20AntofagastaAntofagasta
    66
  23. 23San CarlosÑuble
    66
  24. 23CuranilahueBiobio
    66
  25. 25CalamaAntofagasta
    66
  26. 26ChiguayanteBiobio
    65
  27. 27QuilpuéValparaiso
    65
  28. 28ChillánÑuble
    64
  29. 29Puerto MonttLos Lagos Region
    64
  30. 30Puerto AysénAysén
    63
  31. 31Los ÁngelesBiobio
    62
  32. 32TalcaMaule Region
    62
  33. 32La UniónLos Ríos Region
    62
  34. 34ValdiviaLos Ríos Region
    62
  35. 34La SerenaCoquimbo Region
    62
  36. 36CauquenesMaule Region
    61
  37. 37TemucoAraucania
    61
  38. 38OsornoLos Lagos Region
    60
  39. 39ConcepciónBiobio
    60
  40. 39Alto HospicioTarapacá
    60
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, December 2023 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, December 2023, smogrank.com/cl/history/2023-12 (accessed 2 Oct 2026).

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