Due to smoke from Canadian wildfires, the air quality index over much of eastern Pennsylvania was in the “orange” range Sunday morning, meaning it’s unhealthy for sensitive

Six of the top ten areas in the US with the worst air quality Saturday morning are in New England, according to the government air quality monitor AirNow.

People with lung disease (including asthma), heart disease, and children and older adults, may experience health effects.

An air quality alert is in effect for nearly the entire state through Friday, but northern and central Minnesota will bear the brunt of it, due to their proximity to Canadian wildfires.