SmogRank / World / Oceania / Australia / Victoria
Most polluted cities in Victoria, Australia
1 measured city, last 30 days; 0 above the WHO 24-hour guideline. The only one: Melbourne at 5.2 µg/m³, #2,148 in the world.
About 0 people in this city breathed unhealthy air on an average day over the last 30 days.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
Cities coloured by their PM2.5 over the last 24 hours. Fires, smoke and ash: Oct 5, the newest UTC day mapped.
- 1Melbournelow-cost sensors 0
Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.
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
Victoria 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.
| City | 7-day estimate |
|---|---|
| Geelong | ≈ 4 µg/m³ |
| Ballarat | ≈ 3 µg/m³ |
| Bendigo | ≈ 3 µg/m³ |
| Wodonga | ≈ 6 µg/m³ |
| St Albans | ≈ 7 µg/m³ |
| Mildura | ≈ 2 µg/m³ |
| Frankston East | ≈ 7 µg/m³ |
| Warrnambool | ≈ 6 µg/m³ |
| Shepparton | ≈ 4 µg/m³ |
| Wangaratta | ≈ 4 µg/m³ |
| Traralgon | ≈ 4 µg/m³ |
| Bacchus Marsh | ≈ 4 µg/m³ |
| Balwyn North | ≈ 7 µg/m³ |
| Warragul | ≈ 4 µg/m³ |
| Torquay | ≈ 6 µg/m³ |
| Bairnsdale | ≈ 5 µg/m³ |
| Horsham | ≈ 2 µg/m³ |
| Burwood | ≈ 7 µg/m³ |
| Echuca | ≈ 4 µg/m³ |
| Wallan | ≈ 7 µg/m³ |
Use this board
SmogRank, most polluted cities in Victoria, Australia, PM2.5, last 30 days to 6 Oct 2026, 23:00 UTC, smogrank.com/au/region/victoria?w=30d.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.