Los Angeles County is the focus of an air quality alert reported at 1:58 p.m. on Wednesday by the National Weather Service.

On Wednesday at 2:12 p.m. an air quality alert was reported by the NWS San Diego CA in effect until Sunday at midnight. The ...

Santa Ana Mountains/Foothills, Orange County Coast, Orange County, San Bernardino and Riverside County Valleys and San Gorgonio Pass Near Banning are under an air quality alert which was reported ...

July Fourth is one of the worst days of the year for air quality in the region, said Daniel B. Curtis, associate professor of ...

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Skies over metro Phoenix were hazy and gray Tuesday morning. Here's what is causing poor air quality in Phoenix and when it ...

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At 1:58 p.m. on Wednesday, the NWS Los Angeles/Oxnard CA reported an air quality alert in effect until Saturday at 11 p.m.