Worst air pollution West Mound Street Historic District - Canal Winchester, today and tomorrow

On 9 August 2026, overall air quality in West Mound Street Historic District is fair. AQI is the main air quality indicator at 32.4/100. Pollution peaks around 9:00 AM (O3: 32.4/100).

On 10 August 2026, air quality conditions in West Mound Street Historic District will be similar to today, with AQI forecast at fair at 33.5/100. Pollution peaks around 9:00 AM (O3: 33.5/100).

This area typically sees its worst air quality during the winter season, driven by the combination of home heating and calm winter air that resists mixing. Summer shifts the concern toward ground-level ozone here too, with summer's heat and sunlight together producing some of the year's highest local ozone levels. Spring and fall stand out as the calmest stretch for air quality, thanks to mild temperatures and steady breezes.

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.