Concentrations of pollutant PM2.5 dropped across Illinois on Friday morning but still remain at hazardous levels.

Southwest winds have pushed the wildfire smoke away from Chicago, for now. While blue skies broke through the blanket of haze ...

An Air Quality Alert remains in effect for the Chicago area Friday due to smoke from Canadian wildfires. The alert is in ...

Haze from Canadian wildfire smoke that has settled in Chicago on Thursday is directly connected to climate change, according to experts, who said days like this could be more problematic moving ...