Red flag warnings remain in place for parts of Nevada, Utah, Colorado and Wyoming due to very dry conditions, low humidity and gusty winds.

We had another decrease in the air quality levels during the day Monday as a southerly wind pushed in another round of ...

As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect ...

Millions of people were told to monitor themselves for the symptoms at least through Monday night, but possibly longer.

A number of states in the United States have declared air quality warnings with concerning levels noted across many of the ...