An air quality alert for northwest and north central Minnesota went into effect at 6 a.m. on Friday and could be extended into Saturday.

Smoke from wildfires burning in the northern Sacramento Valley may bring hazy skies and unhealthy air to parts of the Bay ...

Wildfire smoke from far Northern California is prompting an air quality alert in the Bay Area, with elevated smoke levels ...

The Minnesota Pollution Control Agency issued an air quality alert Friday, July 11, for northwest and north central Minnesota. The alert takes effect 6 a.m. and runs until 6 p.m. Friday. Heavy ...

Smoke from the Green Fire — a 5,000-acre fire burning west of Shasta Lake — could soon reach the Bay Area, according to the National Weather Service. Satellite imagery showed the smoke moving south ...

Wildfires are burning in Northern California and Southern Oregon. A Spare The Air Alert day is in effect Friday due to poor air quality.

As the summer's sunny days take hold, many people turn to outdoor exercise. But in parts of North America, pleasant weather ...

Research shows that long-term exposure to wildfire smoke is linked to lung diseases, heart disease and other conditions. Since these illnesses take decades to develop, scientists think that the health ...

Opinion: Each year we see larger and more severe fires and smoke. It threatens our lives. Municipal and agricultural ...

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Tennessee football fans again could savor the tradition-honored aroma of cigar smoke with a victory over Alabama on Saturday.

A new online platform could help communities detect a need for preventative fire management, with the goal of reducing subsequent smoke exposures. The app is able to identify not just where blazes ...