Homewood Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Homewood, Illinois, is a south suburban community situated approximately 30 miles south of Chicago, within Cook County. Its geography is characteristic of the Chicago metropolitan area’s glacial plains, exhibiting a relatively flat terrain with minimal elevation changes. Located at coordinates 41.5591, -87.6610, the village sits within the Chicago Lake Plain, historically a marshy area drained for agriculture and urban development. The surrounding landscape is a mix of residential areas, light industrial parks, and remnants of agricultural land, transitioning to more rural landscapes further south. The Cal-Sag Channel, a crucial waterway for barge traffic and drainage, runs nearby, influencing local humidity and potentially contributing to localised pollutant dispersion. Homewood’s proximity to Chicago and its extensive transportation network – including major highways and rail lines – means it experiences air quality impacts from regional pollution sources. The urban-rural gradient is pronounced; air quality generally degrades as one approaches the city centre, but local sources within Homewood and surrounding communities also contribute. The prevailing winds, typically from the southwest, can transport pollutants from upwind industrial areas, while stagnant air masses can exacerbate local emissions. This interplay of regional and local factors defines Homewood’s air quality challenges.

Homewood’s air quality follows a distinct seasonal pattern. Spring (March-May) often sees elevated particulate matter from agricultural practices and road salt residue, coupled with increasing pollen counts, impacting respiratory health. Summer (June-August) typically experiences better air quality due to increased atmospheric mixing and rainfall, though ozone formation can be a concern during hot, sunny days, particularly in July and August. Prolonged heat waves exacerbate this issue. Autumn (September-November) brings a return of stagnant air masses and potential for temperature inversions, trapping pollutants near the ground, especially as heating systems begin operation. November can be particularly challenging. Winter (December-February) is often characterised by the poorest air quality, driven by increased residential heating (burning of fossil fuels) and limited atmospheric dispersion due to cold temperatures and frequent inversions. January and February are typically the months with the most concerning conditions. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during peak pollution periods. Monitoring forecasts and adjusting activity levels accordingly is crucial for protecting health throughout the year.