Worst air pollution Hemsedal kommune, today and tomorrow

On 9 August 2026, overall air quality in Hemsedal kommune is fair. AQI is the main air quality indicator at 29.0/100. Pollution peaks around 10:00 AM (O3: 29.0/100).

On 10 August 2026, air quality conditions in Hemsedal kommune will be better than today, with AQI forecast at good at 17.0/100. Pollution peaks around 3:00 PM (O3: 17.0/100).

Hemsedal kommune typically sees the sharpest drop in air quality when temperature inversions settle in overnight, when wood-smoke and traffic combine on calm winter days over the low-lying terrain. This part of eastern Norway generally sees decent background air quality overall. The remainder of the year, Hemsedal kommune's air quality is typically unremarkable in a good way.

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.