Worst air pollution Tournus, today and tomorrow

On 21 July 2026, overall air quality in Tournus is fair. AQI is the main air quality indicator at 35.3/100. Pollution peaks around 4:00 PM (O3: 35.3/100).

On 22 July 2026, air quality conditions in Tournus will be similar to today, with AQI forecast at fair at 36.0/100. Pollution peaks around 7:00 PM (O3: 36.0/100).

Tournus's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when light industry and river-valley traffic overlap with the oak and hornbeam pollen peak; the Saone and Doubs valleys channel airflow, offering fairly regular relief.

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.