SmogRank / World / Chile / August 2023

Most polluted cities in Chile, August 2023

41 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Osorno at 74.8 µg/m³, #1 of 1,683 cities in the world. Cleanest: Calama at 16.9. A city needs measurements on 70% of the days to be ranked.

← Osorno 74.8 µg/m³ 70 µg/m³0
Every city in Chile ranked for August 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. 1OsornoLos Lagos Region
    165
  2. 2Puerto VarasLos Lagos Region
    160
  3. 3NacimientoBiobio
    159
  4. 4CoyhaiqueAysén
    155
  5. 5La UniónLos Ríos Region
    137
  6. 6TemucoAraucania
    126
  7. 7San CarlosÑuble
    125
  8. 8Puerto MonttLos Lagos Region
    124
  9. 9CuranilahueBiobio
    121
  10. 10Los ÁngelesBiobio
    118
  11. 11ChillánÑuble
    117
  12. 12LinaresMaule Region
    116
  13. 13ValdiviaLos Ríos Region
    115
  14. 14CoronelBiobio
    115
  15. 15HualquiBiobio
    112
  16. 16CuricóMaule Region
    106
  17. 17Puerto AysénAysén
    103
  18. 18SantiagoSantiago Metropolitan
    102
  19. 19RengoO'Higgins Region
    99
  20. 20RancaguaO'Higgins Region
    99
  21. 21TalcahuanoBiobio
    99
  22. 22TalaganteSantiago Metropolitan
    97
  23. 23TalcaMaule Region
    96
  24. 23CauquenesMaule Region
    96
  25. 25Puente AltoSantiago Metropolitan
    92
  26. 26QuillotaValparaiso
    88
  27. 27ToméBiobio
    88
  28. 28ChiguayanteBiobio
    80
  29. 29ConcepciónBiobio
    80
  30. 30AntofagastaAntofagasta
    79
  31. 30San Pedro de la PazBiobio
    79
  32. 32CoquimboCoquimbo Region
    78
  33. 33QuinteroValparaiso
    76
  34. 34Viña del MarValparaiso
    76
  35. 35CopiapóAtacama
    75
  36. 36ConcónValparaiso
    73
  37. 37LotaBiobio
    71
  38. 38TocopillaAntofagasta
    71
  39. 39Alto HospicioTarapacá
    70
  40. 40La SerenaCoquimbo Region
    69
  41. 41CalamaAntofagasta
    66
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, August 2023 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, August 2023, smogrank.com/cl/history/2023-08 (accessed 2 Oct 2026).

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