South Coast Air Quality Management District officials said it received more than 130 public complaints since the start of the ...

Unhealthy PM2.5 levels in parts of California and Mississippi are prompting EPA warnings for residents to limit outdoor ...

Orange County Coast, Orange County and San Bernardino and Riverside County Valleys are the focus of an air quality alert ...

Air quality alerts near two major cities are urging tens of thousands of Americans to stay indoors because of toxins that ...

Large plumes of polluted air have spread out across several states in the US on Thursday, triggering alerts to stay indoors and avoid strenuous activity.

Large plumes of polluted air have spread out across several states on the East and West Coasts Wednesday, triggering alerts to stay indoors and avoid strenuous activity.

I’M LETICIA ORDAZ IN FOR LISA GONZALES TODAY. IT’S BEEN A FOGGY COUPLE OF DAYS IN OUR REGION, AND THIS IS A LIVE LOOK OVER SACRAMENTO. AND AS YOU CAN SEE, IT’S JUST STILL QUITE DENSE. LET’S SEND IT ...

Meteorologists at the National Weather Service may have an answer for Bay Area residents regarding Thursday's poor air quality. Roger Gass, a meteorologist with the National Weather Service in the San ...

"High pressure causes the air to sink," Hall explained. "It creates basically a cap or a lid over the Bay Area, and there's not much of a wind to help mix things out. Then you add on top of that some ...

University of Birmingham scientists have developed a new way of measuring and analyzing indoor air pollution that—in initial trials—has established a clear link between office occupancy, physical ...

SALT LAKE CITY — It’s not just you—if the sky looks bad and the air smells off, it’s because Salt Lake City is topping the charts for the worst air quality in the nation right now, for a second day in ...