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

The National Weather Service reported an air quality alert at 8:42 a.m. EDT on Wednesday in effect until Friday at midnight ...

Canadian wildfire smoke lingers over Michigan. As of July 30, the Upper Peninsula is under an advisory for unhealthy air.

Wildfire smoke pouring into the state from Canadian fires has triggered a red air quality alert, signaling that the air is ...

An air quality alert was reported by the National Weather Service on Wednesday at 8:25 a.m. EDT in effect until Friday at ...

The best way to protect yourself from poor air quality is to stay indoors, especially when the Air Quality Index reaches ...

The heat and humidity mixed with smoke resulted in a "code orange" alert for Philly and its suburban counties.

Officials warned young children and those with respiratory illnesses to take precautions. For weeks, smoke from Canadian ...

New York City, Long Island and the Hudson Valley will all experience air quality within the 101-150 range on the air quality ...

Canadian wildfire smoke is again causing air quality problems in Northwest Wisconsin, leading to an air quality alert from ...

The Canadian wildfire smoke that covered northwest Wisconsin July 24 has moved south and is causing air quality problems in ...

"A lot of the prairies within Canada, the prairie provinces, entered the fire season already starting out in a drought, and ...