Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.

The poor air quality continues to prevail in Illinois as Canadian wildfire smoke migrates south into the U.S. As a result, ...

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

National Weather Service officials called an air quality alert in effect until midnight as well as a beach hazard warning.

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

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

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

For the first time in what felt like years, Festa Italiana over Boylan Catholic High School went on without any high heat and ...

The "unhealthy" air, which ranks as level four of six on the Air Quality Index, comes after multiple consecutive days of air quality alerts.

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

An Illinois Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate ...