SmogRank / World / Australia / May 2026

Most polluted cities in Australia, May 2026

8 cities in Australia ranked by their average PM2.5 over the 31 days. Worst: Traralgon at 7.0 µg/m³, #1,524 of 2,522 cities in the world. Cleanest: Bendigo at 2.7. A city needs measurements on 70% of the days to be ranked.

← Traralgon 7.0 µg/m³ 20 µg/m³0
Every city in Australia ranked for May 2026, 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. 1TraralgonVictoria
    39
  2. 2Melbournelow-cost sensorsVictoria
    37
  3. 3GeelongVictoria
    33
  4. 4Sydneylow-cost sensorsNew South Wales
    31
  5. 5Bacchus MarshVictoria
    26
  6. 6MilduraVictoria
    23
  7. 7Adelaidelow-cost sensorsSouth Australia
    21
  8. 8BendigoVictoria
    15
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

All cities in the world, May 2026 · Australia now

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SmogRank, most polluted cities in Australia, PM2.5, May 2026, smogrank.com/au/history/2026-05 (accessed 2 Oct 2026).

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