SmogRank / Countries / Australia / July 2025

Most polluted cities in Australia, July 2025

3 cities in Australia ranked by their average PM2.5 over the 31 days. Worst: Sydney at 5.2 µg/m³, #2,054 of 2,283 cities in the world. Cleanest: Adelaide at 3.1. A city needs measurements on 70% of the days to be ranked.

  1. 1Sydneylow-cost sensorsNew South Wales
    5.2
  2. 2Melbournelow-cost sensorsVictoria
    3.7
  3. 3Adelaidelow-cost sensorsSouth Australia
    3.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, July 2025 · Australia now

Use this board

SmogRank, most polluted cities in Australia, PM2.5, July 2025, smogrank.com/au/history/2025-07 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.