Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

High school coaches and administrators across Minnesota have been asked to be aware of air-quality levels as athletes return ...

Wildfires are burning across the Western United States and Canada, affecting large parts of the country as smoke drifts. With ...

Concerns for air quality linger after Monday's explosion in Clairton Donald Trump reacts to Melania's $1B defamation threat ...

While the smoke is worst along the Western Slope where the fires are burning, levels are also fluctuating on the Front Range.

The City Council dropped a $202 million effort that would have expanded the city’s cooling centers to also accommodate people ...

The Mount Underwood wildfire south of Port Alberni has resulted in a 'high risk' air quality index status for Nanaimo, as ...

The health department began deploying mobile air units Thursday provided by Pennsylvania’s Department of Environmental ...

The wildfire that has triggered evacuation orders and alerts on south-central Vancouver Island is billowing smoke that has ...

Organizations like the Breathe Project and the Group Against Smog and Pollution, in conjunction with the Allegheny County Health Department, have been closely monitoring the air quality in Clairton ...