With cleanup crews scouring Grant Park and streets beginning to reopen on Monday, another Lollapalooza was in the books.

However, Lake, Porter, Newton and Jasper counties in Indiana will be under another air quality alert all day Tuesday. The ...

Air quality alerts were in effect in Iowa, Minnesota, Wisconsin and Michigan, as well as eastern Nebraska and parts of ...

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

Smoke from more than 700 active wildfires in Canada is once again clouding skies and pushing air quality into dangerous ...

A number of states in the United States have declared air quality warnings with concerning levels noted across many of the ...

The summer of 2025 has brought some of the worst air quality ever recorded to large parts of the United States. Cities across ...