SmogRank / History / City race

Cities in Chile, worst air first, day by day

Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.

CountriesCities
The 30 days to20 Jun 2024 That day's board

The worst cities in Chile for PM2.5 over the 30 days to 20 Jun 2024: Coyhaique 122.4 µg/m³, Osorno 80.7 µg/m³ and Nacimiento 72.9 µg/m³.

  1. 1CoyhaiqueAysén122.4
  2. 2OsornoLos Lagos Region80.7
  3. 3NacimientoBiobio72.9
  4. 4HualpénBiobio62.2
  5. 5CuricóMaule Region59.2
  6. 6RengoO'Higgins Region58.7
  7. 7CuranilahueBiobio57.8
  8. 8Puerto VarasLos Lagos Region56.6
  9. 9San CarlosÑuble56.5
  10. 10La UniónLos Ríos Region55.1
  11. 11RancaguaO'Higgins Region50.7
  12. 12TalaganteSantiago Metropolitan49.8
  13. 13SantiagoSantiago Metropolitan49.1
  14. 14Puerto AysénAysén48.3
  15. 15ChillánÑuble47.9
  16. 16Puerto MonttLos Lagos Region47.5
  17. 17VillarricaAraucania44.9
  18. 18Los ÁngelesBiobio44.8
  19. 19ValdiviaLos Ríos Region43.9
  20. 20HualquiBiobio42.9

+ 25 more cities, 42.6 µg/m³ and below

Not counted on this day, too few days measured: Laja since 13 Jun 2024.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that day

A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.

Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.