Friday morning, Chicago's air quality showed a PM 2.5 of 157. Typically, anything above 100 is considered to be hazardous to at least some groups, and anything over 150 is considered to be “unhealthy, ...

Andrew Benintendi, Lenyn Sosa, Colson Montgomery and Josh Rojas homered for the Chicago White Sox in a 6-3 victory against ...

The Chicago Cubs called up prospect Moisés Ballesteros and started him as their designated hitter as the corresponding move for designating infielder Vidal Bruján for assignment.

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know before heading out the door.

Pollen and Air Quality forecast for Chicago, IL with air quality index, pollutants, pollen count and pollution map from Weather Underground.

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...

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

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