Worst air pollution Valley City, today and tomorrow

On 9 August 2026, overall air quality in Valley City is fair. AQI is the main air quality indicator at 39.2/100. Pollution peaks around 12:00 AM (NO2: 39.2/100).

On 10 August 2026, air quality conditions in Valley City will be similar to today, with O3 forecast at fair at 31.9/100. Pollution peaks around 7:00 PM (NO2: 42.3/100).

Valley City sees air quality change through the year. In short, the calmest air usually arrives in winter, between planting and harvest dust events, whereas both spring planting and autumn harvest bring short bursts of elevated dust and smoke. Because the land is so open here, air quality tends to bounce back quickly once the wind returns.

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.