Pennsylvanians woke up to hazy skies again. Canadian wildfires sending smoke to the state triggered an air quality alert ...

Wildfire smoke has returned to Pennsylvania, but its impact on air quality so far is far less severe than what the region ...

Wildfire smoke from Canada continues to impact air quality across central Pennsylvania, with hazy conditions expected through ...

Particularly north and west of the Lehigh Valley, anyone who might be especially vulnerable to the effects of air pollution ...

Under a Code Orange alert, it's recommended that children, older adults and those with respiratory illnesses limit time spent ...

Canadian wildfire smoke will impact portions of the Northeast and Mid-Atlantic for the early part of the week. While nothing ...

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Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

Anyone who might be especially vulnerable to the effects of air pollution should limit their outdoor activities.