Worst air pollution River Ranch, today and tomorrow

On 25 August 2026, overall air quality in River Ranch is fair. AQI is the main air quality indicator at 29.2/100. Pollution peaks around 11:00 PM (NO2: 29.2/100).

On 26 August 2026, air quality conditions in River Ranch will be similar to today, with AQI forecast at fair at 34.8/100. Pollution peaks around 10:00 PM (NO2: 34.8/100).

Winter months routinely bring the sharpest rise in particulate matter to this area, as cold, still air holds wood smoke and heating emissions close to the ground through winter. Summer shifts the concern toward bushfire smoke here too, as smoke drifting in from regional bushfires combines with the heat and sunlight that also drive ozone.

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.