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

Wildfires burning in Canada were causing unhealthy air quality across parts of North America on Monday. Canadian wildfires ...

Canadian wildfire smoke brought numerous air quality alerts to the Northeast on Aug. 4, including in multiple North Jersey ...

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

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 ...

The Wisconsin Department of Natural Resources re-extended its air quality alert statewide as wildfire smoke lingers.

Massachusetts could see hazy skies throughout the day Monday as wildfire smoke from Canada drifts into the Bay State. The ...

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

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 ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

The worst air quality in recent years occurred in June 2023, when the smoke became so thick it created an orange haze over ...