Chicago air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian ...

Wildfire smoke from Canada turned Chicago into one of the world’s most polluted metro areas as the Lollapalooza music ...

Wildfire smoke drifting across the Great Lakes has caused air quality to plunge to hazardous levels in several states, ...

Hundreds of thousands of music fans of all genres packed Grant Park for the first day of Lollapalooza 2025. But Chicago air ...

Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.

It appeared that, as of Friday, Chicago-area residents wouldn't get a reprieve from poor air quality in the near future.

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

A thick haze of smoke from Canadian wildfires has descended on the US Midwest, degrading air quality during Lollapalooza in Chicago.

Smoke has continued to cloud Illinois' air for a second straight day, but the poor air quality isn't because of a fire in the ...

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke ...

Chicago had the worst air quality in the world on Thursday. There is an Air Quality Alert for most of the area through Friday.