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 2.6 µg/m³, #1,237 in the world.

Western AustraliaNorthern TerritorySouth Australia: 1 measured cityQueenslandNew South Wales: 1 measured cityVictoria: 1 measured cityTasmaniaAustralian Capital Territory#3 Adelaide: 1.9 µg/m³#2 Sydney: 2.0 µg/m³#1 Melbourne: 2.6 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 2.6 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 10.2×
  2. 2Sydneylow-cost sensorsNew South Wales 10.1×
  3. 3Adelaidelow-cost sensorsSouth Australia 10.1×
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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/m³Low risk
Perth≈ 7 µg/m³Low risk
Gold Coast≈ 10 µg/m³Low risk
Newcastle≈ 10 µg/m³Low risk
Sunshine Coast≈ 10 µg/m³Low risk
Canberra≈ 5 µg/m³Low risk
Central Coast≈ 9 µg/m³Low risk
Logan City≈ 10 µg/m³Low risk
Geelong≈ 5 µg/m³Low risk
Wollongong≈ 11 µg/m³Low risk
Hobart≈ 4 µg/m³Low risk
Townsville≈ 7 µg/m³Low risk
Cairns≈ 5 µg/m³Low risk
Toowoomba≈ 7 µg/m³Low risk
Darwin≈ 10 µg/m³Low risk
Ballarat≈ 3 µg/m³Low risk
Mandurah≈ 6 µg/m³Low risk
Bendigo≈ 3 µg/m³Low risk
Caloundra≈ 10 µg/m³Low risk
Launceston≈ 5 µg/m³Low risk
Maitland≈ 10 µg/m³Low risk
Tuggeranong≈ 4 µg/m³Low risk
Mackay≈ 7 µg/m³Low risk
Rockhampton≈ 6 µg/m³Low risk
Coffs Harbour≈ 7 µg/m³Low risk
Bunbury≈ 6 µg/m³Low risk
Bundaberg≈ 8 µg/m³Low risk
Adelaide Hills≈ 5 µg/m³Low risk
Hervey Bay≈ 9 µg/m³Low risk
Port Macquarie≈ 7 µg/m³Low risk
Gladstone≈ 7 µg/m³Low risk
Tamworth≈ 7 µg/m³Low risk
Dubbo≈ 6 µg/m³Low risk
Orange≈ 5 µg/m³Low risk
Wodonga≈ 6 µg/m³Low risk
Geraldton≈ 4 µg/m³Low risk
St Albans≈ 7 µg/m³Low risk
Bathurst≈ 5 µg/m³Low risk
Albany≈ 7 µg/m³Low risk
Mildura≈ 2 µg/m³Low risk

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SmogRank, most polluted cities in Australia, PM2.5, last 24 hours to 2 Oct 2026, 03:00 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 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.