Worst air pollution Fraser, today and tomorrow

On 20 July 2026, overall air quality in Fraser is very poor. AQI is the main air quality indicator at 84.7/100. Pollution peaks around 10:00 PM (NO2: 84.7/100).

On 21 July 2026, air quality conditions in Fraser will be better than today, with AQI forecast at poor at 79.6/100. Pollution peaks around 12:00 AM (NO2: 79.6/100).

Fraser follows a fairly predictable seasonal air quality pattern. In short, the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, whereas valley and basin locations can see pollution trapped under cold air for days during winter inversions. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.

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.