SmogRank / World / Chile / July 2023

Most polluted cities in Chile, July 2023

42 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Coyhaique at 103.9 µg/m³, #1 of 1,159 cities in the world. Cleanest: Calama at 17.7. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it 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.

← Coyhaique 103.9 µg/m³ 100 µg/m³0
Every city in Chile ranked for July 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. 1CoyhaiqueAysén
    185
  2. 2NacimientoBiobio
    172
  3. 3OsornoLos Lagos Region
    165
  4. 4Puerto VarasLos Lagos Region
    159
  5. 5LinaresMaule Region
    154
  6. 6RancaguaO'Higgins Region
    152
  7. 7CuranilahueBiobio
    152
  8. 8San CarlosÑuble
    150
  9. 9ChillánÑuble
    147
  10. 10RengoO'Higgins Region
    145
  11. 11CuricóMaule Region
    145
  12. 12SantiagoSantiago Metropolitan
    142
  13. 13TemucoAraucania
    141
  14. 13TalaganteSantiago Metropolitan
    141
  15. 15Los ÁngelesBiobio
    139
  16. 16Puerto AysénAysén
    138
  17. 17TalcahuanoBiobio
    138
  18. 18Puerto MonttLos Lagos Region
    137
  19. 19La UniónLos Ríos Region
    130
  20. 20HualquiBiobio
    127
  21. 21CoronelBiobio
    122
  22. 22TalcaMaule Region
    115
  23. 23Puente AltoSantiago Metropolitan
    113
  24. 24CauquenesMaule Region
    113
  25. 25ValdiviaLos Ríos Region
    110
  26. 26QuillotaValparaiso
    99
  27. 27ToméBiobio
    98
  28. 28ConcepciónBiobio
    91
  29. 29ChiguayanteBiobio
    90
  30. 29San Pedro de la PazBiobio
    90
  31. 31CoquimboCoquimbo Region
    87
  32. 32Viña del MarValparaiso
    82
  33. 33QuinteroValparaiso
    81
  34. 34ConcónValparaiso
    80
  35. 35AntofagastaAntofagasta
    79
  36. 36La SerenaCoquimbo Region
    78
  37. 37LotaBiobio
    77
  38. 38Alto HospicioTarapacá
    73
  39. 39CopiapóAtacama
    73
  40. 40AricaArica y Parinacota Region
    72
  41. 41TocopillaAntofagasta
    70
  42. 42CalamaAntofagasta
    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, July 2023 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, July 2023, smogrank.com/cl/history/2023-07 (accessed 2 Oct 2026).

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