SmogRank / World / Oceania / Australia

Most polluted cities in Australia

3 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Melbourne at 2.5 µg/m³, #1,229 in the world.

Western AustraliaNorthern TerritorySouth Australia: 1 measured cityQueenslandNew South Wales: 1 measured cityVictoria: 1 measured cityTasmaniaAustralian Capital Territory#3 Adelaide: 1.7 µg/m³#2 Sydney: 2.1 µg/m³#1 Melbourne: 2.5 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city, or a region to zoom in.
← Melbourne 2.5 WHO 24-hour guideline
Every measured city in Australia, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Melbournelow-cost sensorsVictoria 40.2×
  2. 2Sydneylow-cost sensorsNew South Wales 30.1×
  3. 3Adelaidelow-cost sensorsSouth Australia 30.1×
Excellent0–50
Good51–100
Lightly polluted101–150
Moderately polluted151–200
Heavily polluted201–300
Severely polluted301+

China's Air Quality Index (HJ 633-2012), PM2.5 individual index. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Australia cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Brisbane≈ 10 µg/m³Excellent
Perth≈ 7 µg/m³Excellent
Gold Coast≈ 10 µg/m³Excellent
Newcastle≈ 10 µg/m³Excellent
Sunshine Coast≈ 10 µg/m³Excellent
Canberra≈ 5 µg/m³Excellent
Central Coast≈ 9 µg/m³Excellent
Logan City≈ 10 µg/m³Excellent
Geelong≈ 5 µg/m³Excellent
Wollongong≈ 11 µg/m³Excellent
Hobart≈ 4 µg/m³Excellent
Townsville≈ 7 µg/m³Excellent
Cairns≈ 5 µg/m³Excellent
Toowoomba≈ 7 µg/m³Excellent
Darwin≈ 10 µg/m³Excellent
Ballarat≈ 3 µg/m³Excellent
Mandurah≈ 6 µg/m³Excellent
Bendigo≈ 3 µg/m³Excellent
Caloundra≈ 10 µg/m³Excellent
Launceston≈ 5 µg/m³Excellent
Maitland≈ 10 µg/m³Excellent
Tuggeranong≈ 4 µg/m³Excellent
Mackay≈ 7 µg/m³Excellent
Rockhampton≈ 6 µg/m³Excellent
Coffs Harbour≈ 7 µg/m³Excellent
Bunbury≈ 6 µg/m³Excellent
Bundaberg≈ 8 µg/m³Excellent
Adelaide Hills≈ 5 µg/m³Excellent
Hervey Bay≈ 9 µg/m³Excellent
Port Macquarie≈ 7 µg/m³Excellent
Gladstone≈ 7 µg/m³Excellent
Tamworth≈ 7 µg/m³Excellent
Dubbo≈ 6 µg/m³Excellent
Orange≈ 5 µg/m³Excellent
Wodonga≈ 6 µg/m³Excellent
Geraldton≈ 4 µg/m³Excellent
St Albans≈ 7 µg/m³Excellent
Bathurst≈ 5 µg/m³Excellent
Albany≈ 7 µg/m³Excellent
Mildura≈ 2 µg/m³Excellent

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SmogRank, most polluted cities in Australia, PM2.5, last 24 hours to 2 Oct 2026, 04:00 UTC, smogrank.com/au.

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Regions

New South Wales 1South Australia 1Victoria 1

Measured cities in each region (30 days).

Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the China AQI PM2.5 sub-index.