SmogRank / World / Chile / October 2023

Most polluted cities in Chile, October 2023

35 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Puerto Varas at 34.5 µg/m³, #20 of 1,722 cities in the world. Cleanest: Calama at 16.8. A city needs measurements on 70% of the days to be ranked.

← Puerto Varas 34.5 µg/m³ 30 µg/m³0
Every city in Chile ranked for October 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. 1Puerto VarasLos Lagos Region
    98
  2. 2HualpénBiobio
    94
  3. 3TemucoAraucania
    91
  4. 4CoyhaiqueAysén
    85
  5. 5NacimientoBiobio
    84
  6. 6SantiagoSantiago Metropolitan
    83
  7. 7La UniónLos Ríos Region
    82
  8. 8Puente AltoSantiago Metropolitan
    81
  9. 9Puerto MonttLos Lagos Region
    78
  10. 10ValdiviaLos Ríos Region
    78
  11. 11CoronelBiobio
    78
  12. 12QuillotaValparaiso
    77
  13. 13RancaguaO'Higgins Region
    76
  14. 14TocopillaAntofagasta
    75
  15. 15San CarlosÑuble
    75
  16. 15QuinteroValparaiso
    75
  17. 17TalaganteSantiago Metropolitan
    74
  18. 18CoquimboCoquimbo Region
    74
  19. 19Los ÁngelesBiobio
    73
  20. 20ToméBiobio
    73
  21. 21CuranilahueBiobio
    72
  22. 22CopiapóAtacama
    72
  23. 23TalcahuanoBiobio
    71
  24. 24ChillánÑuble
    71
  25. 25CauquenesMaule Region
    70
  26. 26La SerenaCoquimbo Region
    70
  27. 27Viña del MarValparaiso
    69
  28. 28RengoO'Higgins Region
    69
  29. 28San Pedro de la PazBiobio
    69
  30. 30ConcónValparaiso
    69
  31. 31LotaBiobio
    68
  32. 32TalcaMaule Region
    68
  33. 33QuilpuéValparaiso
    67
  34. 33Puerto AysénAysén
    67
  35. 35CalamaAntofagasta
    65
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, October 2023 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, October 2023, smogrank.com/cl/history/2023-10 (accessed 2 Oct 2026).

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