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

Kavya Beheraj/Axios Air quality alerts are in effect for swaths of the Northeast and Midwest on Wednesday because of smoke from Canadian wildfires. Why it matters: Breathing wildfire smoke has ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.