SmogRank / World / Chile / April 2023

Most polluted cities in Chile, April 2023

41 cities in Chile ranked by their average PM2.5 over the 30 days. Worst: Coyhaique at 53.1 µg/m³, #11 of 1,360 cities in the world. Cleanest: Calama at 16.5. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 3 of these 30 days. Cities in the United States and Europe have them 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 53.1 µg/m³ 50 µg/m³0
Every city in Chile ranked for April 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
    144
  2. 2Puerto VarasLos Lagos Region
    110
  3. 3OsornoLos Lagos Region
    109
  4. 4San CarlosÑuble
    100
  5. 5LinaresMaule Region
    100
  6. 6ChillánÑuble
    98
  7. 7NacimientoBiobio
    97
  8. 8Puerto MonttLos Lagos Region
    93
  9. 8Puerto AysénAysén
    93
  10. 10RancaguaO'Higgins Region
    92
  11. 11CuricóMaule Region
    92
  12. 12CuranilahueBiobio
    90
  13. 13SantiagoSantiago Metropolitan
    90
  14. 14ValdiviaLos Ríos Region
    88
  15. 15HualpénBiobio
    87
  16. 16La UniónLos Ríos Region
    86
  17. 17TalaganteSantiago Metropolitan
    86
  18. 18TalcaMaule Region
    85
  19. 19Puente AltoSantiago Metropolitan
    85
  20. 20CoronelBiobio
    85
  21. 21QuillotaValparaiso
    83
  22. 22TemucoAraucania
    83
  23. 23HualquiBiobio
    83
  24. 24RengoO'Higgins Region
    82
  25. 25ToméBiobio
    81
  26. 26TalcahuanoBiobio
    81
  27. 27Viña del MarValparaiso
    80
  28. 27QuinteroValparaiso
    80
  29. 29Los ÁngelesBiobio
    77
  30. 30ConcónValparaiso
    76
  31. 31AntofagastaAntofagasta
    75
  32. 32CauquenesMaule Region
    74
  33. 33TocopillaAntofagasta
    74
  34. 34LotaBiobio
    74
  35. 35La SerenaCoquimbo Region
    72
  36. 36CopiapóAtacama
    71
  37. 37ChiguayanteBiobio
    71
  38. 38San Pedro de la PazBiobio
    71
  39. 39CoquimboCoquimbo Region
    71
  40. 40ConcepciónBiobio
    70
  41. 41CalamaAntofagasta
    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, April 2023 · Chile now

Use this board

SmogRank, most polluted cities in Chile, PM2.5, April 2023, smogrank.com/cl/history/2023-04 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.