Worst air pollution Umeälven Riverside - Umeå, today and tomorrow

On 30 August 2026, overall air quality in Umeälven Riverside is fair. AQI is the main air quality indicator at 24.3/100. Pollution peaks around 11:00 PM (O3: 24.3/100).

On 31 August 2026, air quality conditions in Umeälven Riverside will be similar to today, with AQI forecast at fair at 25.2/100. Pollution peaks around 11:00 AM (O3: 25.2/100).

Does air quality in Umeälven Riverside vary by season? Midwinter is generally the least favourable period, as still air and cold temperatures allow local pollutants to build up rather than clear. By spring, more frequent fronts and wind usually disperse pollutants faster, even as tree pollen becomes the bigger seasonal concern. The warmer months usually see the cleanest air of the year, aided by better ventilation and reduced wood-burning. As the clocks change, so does the air quality pattern, with wood-smoke and calmer nights gradually taking over from summer's cleaner air. Given the longer, colder northern winter, this seasonal swing tends to be more pronounced and longer-lasting than further south.

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.