Dr. Dorothy Curran says fine particles in wildfire smoke especially affect sensitive groups, like kids with asthma or Chronic Obstructive Pulmonary Disease (COPD).

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at least the third day.

Due to the smoky air, an Air Quality Alert has been extended for all of Southeast Michigan through Sunday. As wildfire smoke ...