The Madre fire in central California has exploded in size, burning nearly 80,000 acres as officials warn of an 'immediate ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

Air quality alerts advising people to stay indoors were issued earlier in the week and lasted through part of Wednesday morning.

Indianapolis faces some of the worst air quality in the world due to July 4th fireworks, leading to PM 2.5 particle pollution ...

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach “code orange” levels again late Thursday afternoon in parts of the region, as ...

The National Weather Service in Austin/San Antonio surveyed the damage from the storm to determine the cause and strength and determined a “long-track microburst” moved through parts of the city.

But the good news is that Wednesday is likely to see the worst of it, said Caitlyn Mensch, a meteorologist at the National Weather Service Boston, with the higher concentration of it moving out ...

Wednesday's air quality is moderate, but there's some good news, said Caitlyn Mensch, a meteorologist at the National Weather Service Boston. The smoke is likely to stay high up in the atmosphere ...