An air quality advisory has ben issued for the Upper Peninsula — including Delta, Menominee and Schoolcraft counties — throughout the weekend. Smoke from wildfires in Canada is making air unhealthy ...

Chicago and Minneapolis' air quality was in the "unhealthy" category, which ranks as level four of six on the Air Quality ...

Last year was an outlier with 48 ozone warnings, becoming the worst air quality year since 2012. More unhealthy ozone days are on the horizon as the region enters its hottest season in July and ...

The Illinois EPA and IDPH are warning residents of unhealthy air quality due to Canadian wildfire smoke, and are urging ...

A cold front is bringing storms and lower temperatures to parts of the country, while the Midwest sees poor air quality from ...