Smoke from Canadian wildfires will persist across most of central and eastern Pennsylvania throughout Tuesday.

When combined with the Philly area’s warm, sunny weather, the incoming smoke stands to increase levels of ozone, the ...

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for all counties in the ...

An air quality alert was issued by the National Weather Service in Mount Holly at 9:39 a.m. on Monday, Aug. 4.

Particulate matter from Canadian wildfire smoke is expected to affect several counties in the 69 News viewing area.

Forecasters have issued a Code Orange air quality alert for Lancaster County on Tuesday, as smoke from Canadian wildfires is ...