SmogRank / History / City race

Cities in Australia, 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 to23 Jan 2024 That day's board

The worst cities in Australia for PM2.5 over the 30 days to 23 Jan 2024: Mount Isa 9.9 µg/m³, Tannum Sands 6.9 µg/m³ and Brisbane 6.2 µg/m³.

  1. 1Mount IsaQueensland9.9
  2. 2Tannum SandsQueensland6.9
  3. 3BrisbaneQueensland6.2
  4. 4NarangbaQueensland5.9
  5. 5Sunshine CoastQueensland5.9
  6. 6CoomeraQueensland5.9
  7. 7Mango HillQueensland5.8
  8. 8Logan CityQueensland5.8
  9. 9Gold CoastQueensland5.4
  10. 10EmeraldQueensland5.4
  11. 11MaryboroughQueensland5.3
  12. 12GladstoneQueensland5.2
  13. 13BlackwaterQueensland5.2
  14. 14MoranbahQueensland4.9
  15. 15TownsvilleQueensland4.8
  16. 16CairnsQueensland4.8
  17. 17AyrQueensland4.8
  18. 18MackayQueensland4.7
  19. 19CanberraAustralian Capital Territory4.1
  20. 20TuggeranongAustralian Capital Territory3.8

+ 1 more city, at 3.2 µg/m³

Not counted on this day, too few days measured: Adelaide since 22 Jan 2024, Grange since 8 Jan 2024 and Toowoomba since 1 Jan 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.