SmogRank / World / Chile / May 2023

Most polluted cities in Chile, May 2023

41 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Osorno at 68.4 µg/m³, #4 of 1,309 cities in the world. Cleanest: Calama at 17.9. A city needs measurements on 70% of the days to be ranked.

← Osorno 68.4 µg/m³ 60 µg/m³0
Every city in Chile ranked for May 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
    160
  2. 2NacimientoBiobio
    158
  3. 3LinaresMaule Region
    152
  4. 4Puerto VarasLos Lagos Region
    150
  5. 5CoyhaiqueAysén
    148
  6. 6CuricóMaule Region
    145
  7. 7SantiagoSantiago Metropolitan
    140
  8. 8RancaguaO'Higgins Region
    135
  9. 9San CarlosÑuble
    134
  10. 10TalaganteSantiago Metropolitan
    131
  11. 10HualquiBiobio
    131
  12. 12ChillánÑuble
    123
  13. 13CoronelBiobio
    122
  14. 14La UniónLos Ríos Region
    117
  15. 15Puerto MonttLos Lagos Region
    117
  16. 16CuranilahueBiobio
    116
  17. 17Puente AltoSantiago Metropolitan
    116
  18. 18Puerto AysénAysén
    113
  19. 19TemucoAraucania
    108
  20. 20TalcaMaule Region
    107
  21. 21QuillotaValparaiso
    105
  22. 22Los ÁngelesBiobio
    103
  23. 23ToméBiobio
    101
  24. 24ValdiviaLos Ríos Region
    99
  25. 25TalcahuanoBiobio
    99
  26. 26CauquenesMaule Region
    98
  27. 27QuinteroValparaiso
    93
  28. 27ChiguayanteBiobio
    93
  29. 29Viña del MarValparaiso
    90
  30. 30ConcepciónBiobio
    88
  31. 31ConcónValparaiso
    87
  32. 32CoquimboCoquimbo Region
    86
  33. 33LotaBiobio
    82
  34. 34San Pedro de la PazBiobio
    82
  35. 35AntofagastaAntofagasta
    82
  36. 36La SerenaCoquimbo Region
    81
  37. 37CopiapóAtacama
    77
  38. 38TocopillaAntofagasta
    76
  39. 39Alto HospicioTarapacá
    75
  40. 40AricaArica y Parinacota Region
    72
  41. 41CalamaAntofagasta
    67
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, May 2023 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, May 2023, smogrank.com/cl/history/2023-05 (accessed 2 Oct 2026).

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