The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.

The heat and humidity mixed with smoke resulted in a "code orange" alert for Philly and its suburban counties.

While we will catch a little break in the haziness throughout the day, it's this evening through the overnight that we will ...

Canadian wildfire smoke lingers over Michigan. As of July 30, the Upper Peninsula is under an advisory for unhealthy air.

It expires on Friday at midnight, due to elevated levels of fine particulate (PM2.5), the Department of Environment, Great ...

"The Big Honking Truck Parade" will still take place Thursday night despite wildfire smoke causing unhealthy air quality ...

The Pennsylvania Department of Environmental Protection declared a Code Orange Air Quality Action Day for Wednesday, due to ...

The National Weather Service reported an air quality alert at 8:42 a.m. EDT on Wednesday in effect until Friday at midnight ...

An air quality alert was reported by the National Weather Service on Wednesday at 8:25 a.m. EDT in effect until Friday at ...

A special air quality statement has been issued for Toronto and southern Ontario as wildfire smoke from the Prairies drifts ...

'Married... With Children' stars expose behind-the-scenes drama of beloved sitcom ...

Out with the heat, in with the smoke.Just as Toronto's fifth heat warning this year was lifted, Environment Canada issued a ...