The unhealthy air quality comes as temperatures in the area are expected to reach into the 90s. The city of Chicago has several cooling areas for residents during the heat.

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

Elev 597 ft, 41.81 °N, 87.67 °W Chicago, IL Air Quality & Pollen star_ratehome 78 Brighton Park Station | Report Report Station ...

Elev 597 ft, 41.95 °N, 87.65 °W Chicago, IL Air Quality & Pollen star_ratehome ...

An Air Quality Alert has been issued for the entire Chicago Area. Counties included in the alert are Cook, Dupage, Grundy, Kane, Kendall, Lake (IL), McHenry and Will and lasts through Monday night.

Wildfire smoke has pushed Chicago's air quality into the "unhealthy" zone. It's so bad, in fact, that we're the most polluted ...

Smoke from Canadian wildfires settled over Chicago Thursday, with air quality reaching “unhealthy” levels for everyone. Air ...

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, ...

An Air Quality Alert has been issued for McHenry, Lake (IL), Kane, DuPage, Cook, Kendall, Grundy, Will, Lake (IN), Porter, Newton, and Jasper Counties until midnight Thursday night.

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

Smoke from Canadian wildfires continues to choke the skies over the Upper Midwest this weekend, with the milky haze even ...