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 ...

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

Smoke from Canadian wildfires will contribute to poor air quality throughout Michigan on Wednesday and Thursday.

It expires on Friday at midnight, due to elevated levels of fine particulate (PM2.5), the Department of Environment, Great ...

The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.

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

Chicago’s summer skies are increasingly foul due to Canadian wildfires, especially when the weather otherwise is nicest. This ...

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 ...