SmogRank / World / Chile / March 2024

Most polluted cities in Chile, March 2024

39 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Coyhaique at 28.9 µg/m³, #39 of 1,466 cities in the world. Cleanest: Concepción at 15.6. A city needs measurements on 70% of the days to be ranked.

← Coyhaique 28.9 µg/m³ 20 µg/m³0
Every city in Chile ranked for March 2024, 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
    88
  2. 2Puente AltoSantiago Metropolitan
    81
  3. 3Puerto VarasLos Lagos Region
    80
  4. 4HualpénBiobio
    80
  5. 5TocopillaAntofagasta
    79
  6. 6SantiagoSantiago Metropolitan
    78
  7. 7Puerto MonttLos Lagos Region
    78
  8. 8QuinteroValparaiso
    77
  9. 9Puerto AysénAysén
    77
  10. 10TalaganteSantiago Metropolitan
    75
  11. 10San CarlosÑuble
    75
  12. 12QuillotaValparaiso
    75
  13. 13Viña del MarValparaiso
    75
  14. 14OsornoLos Lagos Region
    74
  15. 15NacimientoBiobio
    73
  16. 15ConcónValparaiso
    73
  17. 17La UniónLos Ríos Region
    72
  18. 17CoronelBiobio
    72
  19. 19RancaguaO'Higgins Region
    71
  20. 20ChillánÑuble
    71
  21. 20AricaArica y Parinacota Region
    71
  22. 22ToméBiobio
    70
  23. 23HualquiBiobio
    70
  24. 24San Pedro de la PazBiobio
    69
  25. 25TalcahuanoBiobio
    69
  26. 26QuilpuéValparaiso
    69
  27. 27CuricóMaule Region
    68
  28. 28Los ÁngelesBiobio
    68
  29. 29TemucoAraucania
    68
  30. 30CoquimboCoquimbo Region
    67
  31. 31CalamaAntofagasta
    67
  32. 32CopiapóAtacama
    67
  33. 33AntofagastaAntofagasta
    66
  34. 34CauquenesMaule Region
    65
  35. 35CuranilahueBiobio
    65
  36. 36TalcaMaule Region
    65
  37. 37ChiguayanteBiobio
    64
  38. 38ValdiviaLos Ríos Region
    63
  39. 39ConcepciónBiobio
    63
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, March 2024 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, March 2024, smogrank.com/cl/history/2024-03 (accessed 2 Oct 2026).

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