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 2.8 µg/m³, #1,193 in the world.

Western AustraliaNorthern TerritorySouth Australia: 1 measured cityQueenslandNew South Wales: 1 measured cityVictoria: 1 measured cityTasmaniaAustralian Capital Territory#3 Adelaide: 1.6 µg/m³#2 Sydney: 2.3 µg/m³#1 Melbourne: 2.8 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 2.8 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Australia, 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. 1Melbournelow-cost sensorsVictoria 160.2×
  2. 2Sydneylow-cost sensorsNew South Wales 130.2×
  3. 3Adelaidelow-cost sensorsSouth Australia 90.1×
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

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/m³Moderate
Perth≈ 7 µg/m³Good
Gold Coast≈ 10 µg/m³Moderate
Newcastle≈ 10 µg/m³Moderate
Sunshine Coast≈ 10 µg/m³Moderate
Canberra≈ 5 µg/m³Good
Central Coast≈ 9 µg/m³Moderate
Logan City≈ 10 µg/m³Moderate
Geelong≈ 5 µg/m³Good
Wollongong≈ 11 µg/m³Moderate
Hobart≈ 4 µg/m³Good
Townsville≈ 7 µg/m³Good
Cairns≈ 5 µg/m³Good
Toowoomba≈ 7 µg/m³Good
Darwin≈ 10 µg/m³Moderate
Ballarat≈ 3 µg/m³Good
Mandurah≈ 6 µg/m³Good
Bendigo≈ 3 µg/m³Good
Caloundra≈ 10 µg/m³Moderate
Launceston≈ 5 µg/m³Good
Maitland≈ 10 µg/m³Moderate
Tuggeranong≈ 4 µg/m³Good
Mackay≈ 7 µg/m³Good
Rockhampton≈ 6 µg/m³Good
Coffs Harbour≈ 7 µg/m³Good
Bunbury≈ 6 µg/m³Good
Bundaberg≈ 8 µg/m³Good
Adelaide Hills≈ 5 µg/m³Good
Hervey Bay≈ 9 µg/m³Good
Port Macquarie≈ 7 µg/m³Good
Gladstone≈ 7 µg/m³Good
Tamworth≈ 7 µg/m³Good
Dubbo≈ 6 µg/m³Good
Orange≈ 5 µg/m³Good
Wodonga≈ 6 µg/m³Good
Geraldton≈ 4 µg/m³Good
St Albans≈ 7 µg/m³Good
Bathurst≈ 5 µg/m³Good
Albany≈ 7 µg/m³Good
Mildura≈ 2 µg/m³Good

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SmogRank, most polluted cities in Australia, PM2.5, last 24 hours to 2 Oct 2026, 06:00 UTC, smogrank.com/au.

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Regions

New South Wales 1South Australia 1Victoria 1

Measured cities in each region, last 24 hours.

Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.