Worst air pollution Museum of Sydney - Sydney, today and tomorrow

On 17 September 2026, overall air quality in Museum of Sydney is moderate. AQI is the main air quality indicator at 46.1/100. Pollution peaks around 10:00 PM (NO2: 46.1/100).

On 18 September 2026, air quality conditions in Museum of Sydney will be worse than today, with AQI forecast at poor at 72.8/100. Pollution peaks around 8:00 PM (NO2: 72.8/100).

Cold-season conditions typically drive the sharpest particulate increases in dense urban areas like this, as urban heating and steady traffic emissions concentrate under inversions typical of calm winter days. Once summer arrives, bushfire smoke haze becomes the primary concern across this urban area on affected days, as bushfire smoke haze, when present, tends to overshadow the more routine ozone increase from summer heat.

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.