An air quality alert was reported by the National Weather Service on Tuesday at 9 a.m. in effect until 7 p.m. for Allegheny ...

The National Weather Service reported an air quality alert at 9 a.m. on Monday in effect until 7 p.m. for Allegheny County.

On Friday at 3:09 p.m. an air quality alert was reported by the National Weather Service in effect until Saturday at noon for ...

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

Orange County Coast, Orange County, San Bernardino and Riverside County Valleys, Riverside County Mountains and San Gorgonio ...

The National Weather Service reported an air quality alert at 9:59 a.m. on Thursday in effect until Friday at 10 a.m. for Deschutes County.

The air inside your home may be five times dirtier than the air outside and this issue worsens in winter. I asked air quality specialists about common culprits for indoor air pollution ...

The NWS Portland OR issued a dense fog advisory at 7:24 a.m. on Thursday in effect until 11 a.m. for Cowlitz County Lowlands.

The alert was put in place for fine particulate matter that may become unhealthy for sensitive groups.

Millions of Americans across four states have been told to stay indoors as overlapping emergencies, from toxic air to ...

Los Angeles County is under an air quality alert which was reported by the National Weather Service on Wednesday at 4:30 p.m. The alert is in effect until Friday Jan. 23, at midnight. The NWS Los ...