PM2.5 — is expected to push the Air Quality Index over 100, reaching levels unhealthy for sensitive groups, including ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...

Tuesday night is when the high pressure system shifts to the east, the NWS says. This should allow south winds to return, ...

The Pennsylvania Department of Environmental Protection issued an air quality alert Tuesday for areas including Centre County ...

Smoke from Canadian wildfires continued to degrade the air quality across several US states, including New York, Michigan, ...

United flight with over 200 passengers declares 'mayday' with engine failure after takeoff from D.C. The unique human body ...

Heavy smoke from Canadian wildfires continues to affect air quality in western Massachusetts, posing health risks to ...

The Massachusetts Department of Environmental Protection rates haze and smoke from Canadian wildfires as unhealthy for ...

Smoke from wildfires burning in Canada is still lingering high above New Hampshire skies, raising concerns about air quality. An air quality alert will be in effect for all of New Hampshire on Tuesday ...