Canadian wildfires brought some of the worst air quality in the world to Chicago last week. Since then, the AQI has gotten a ...

Smoke coming in from Canadian wildfires settled over Chicago, causing unhealthy air quality conditions for at-risk groups.

Wildfires are still raging in Canada, where there have been dozens of active fires, and over 33,000 people have been forced ...

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy ...

An air quality alert remains in effect for the entire Chicago area, with another "Air Pollution Action Day" alert declared as ...

Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials issued an air ...

An air quality alert has been extended for the Chicago area as "unhealthy" levels are expected to continue into the start of ...

An air quality alert is in effect until midnight Thursday for the Chicago area as Canadian wildfires continue.

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

Chicago had the worst air quality overnight Wednesday into Thursday, the latest American city to feel the impact of wildfire ...

An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather ...

Wildfire smoke from blazes burning in the Canadian prairie has drifted across New York and Chicago, contributing to ...