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 ...

While the sky has looked opaque today due to wildfire smoke, most of this smoke is elevated above the ground, minimizing air ...

The state Department of Environmental Conservation had issued the Monday alert for 11 a.m. through 11 p.m. due to ozone ...

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

The Mount Underwood fire near Port Alberni continues to grow, and many on Vancouver Island are feeling the impact. Island ...

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

While not everyone will be impacted by air quality on Wednesday, those who have been sensitive to poor air quality this ...

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

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 ...

The Kyrene School District released an air quality report on Tuesday showing the air quality measurement at the Kyrene De La ...

Some regions of Louisiana are known for having the worst air quality, but other areas are said to have the best. Here's where the best air quality is.