Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast. Air quality alerts were in effect Tuesday in several states, including Wisconsin,

Massachusetts could see hazy skies throughout the day Monday as wildfire smoke from Canada drifts into the Bay State. The smoke prompted National Weather Service forecasters to issue an Air Quality Alert blanketing the entire state, warning that the air may be unhealthy for sensitive groups.

Smoke from wildfires in Canada will be affecting the air quality in Rhode Island and Massachusetts starting early Monday afternoon and lasting through Tuesday.