Smoke from Canadian wildfires is causing air quality concerns and hazy skies for many Americans in the Midwest and Northeast for another day this week. Map shows air quality alerts in effect Wednesday ...

CHICAGO — The haze of unhealthful air that settled over Chicago and other Great Lakes cities Tuesday reminded Americans from the Midwest to the Northeast and as far south as Kentucky to brace for more ...

Smoke from Canadian wildfires is causing air quality concerns and hazy skies for many Americans in the Midwest and Northeast for another day this week. A map of the current Air Quality Index, the ...