Worst air pollution Preston - Melbourne, today and tomorrow

On 5 August 2026, overall air quality in Preston is fair. PM1 is the main pollutant at 21.4/100. Pollution peaks around 7:00 PM (NO2: 57.2/100).

On 6 August 2026, air quality conditions in Preston will be better than today, with AQI forecast at medium at 52.1/100. Pollution peaks around 6:00 PM (NO2: 52.1/100).

Sitting further from Port Phillip Bay than bayside suburbs, Preston gets less benefit from cooling sea breezes, so summer bushfire smoke (December–March) can linger a little longer here on hot, still days. Winter wood-heater smoke adds a further seasonal rise. Expect these two periods to dominate any air-quality concerns.

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.