Worst air pollution North End Historic District - Steubenville, today and tomorrow

On 9 August 2026, overall air quality in North End Historic District is fair. O3 is the main pollutant at 34.2/100. Pollution peaks around 11:00 PM (NO2: 43.6/100).

On 10 August 2026, air quality conditions in North End Historic District will be similar to today, with PM1 forecast at fair at 39.8/100. Pollution peaks around 11:00 PM (NO2: 47.8/100).

Particulate levels here tend to peak during the coldest months of the year, as rural heating sources add up under inversions that keep smoke from dispersing. Summer heat and sun make ozone the leading local air quality issue, as heat and sunlight drive photochemical smog, occasionally worsened by drifting wildfire smoke. Between the winter and summer extremes, spring and fall usually bring the year's most consistently clear air.

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.