When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those breathing it.

Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

Smoke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...

S moke from Canadian wildfires have continued to drift over the Midwest, blanketing the region with haze and poor air quality, prompting the National Weather Service (NWS) and local departments to ...

CHICAGO (WLS) -- Most of the Chicago area remains under an Air Quality Alert on Saturday due to smoke from Canadian wildfires ...

National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

Though hazy and smokey skies still linger, the Chicago area will see lighter levels of smoke overhead as air quality begins ...

Check the latest air quality levels across the St. Louis metro with real-time AQI readings from FOX 2’s trusted ...