Worst air pollution Homan Square - Cicero, today and tomorrow

On 9 August 2026, overall air quality in Homan Square is fair. AQI is the main air quality indicator at 32.8/100. Pollution peaks around 8:00 AM (O3: 32.8/100).

On 10 August 2026, air quality conditions in Homan Square will be similar to today, with AQI forecast at fair at 34.7/100. Pollution peaks around 9:00 AM (O3: 34.7/100).

Winter tends to bring the year's worst particulate spikes here, driven by heating season smoke that lingers under stagnant, cold winter air. As temperatures rise, ozone typically becomes the dominant summer issue around here, since intense sun and heat fuel ozone formation, sometimes compounded by regional 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.