On Wednesday at 8:20 a.m. the NWS Los Angeles/Oxnard CA reported an air quality alert in effect until Thursday at 8 p.m. The ...

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

Los Angeles and much of Southern California were met with a regional air quality alert on Saturday, following July 4th ...

As San Luis County's Madre Fire rips through California, air quality warnings are now being issued for nearby areas, ...

For most of Monday, measurements on the U.S. Air Quality Index hovered around moderate or good in the central Los Angeles area, but only through 9 p.m. Starting then — just after most firework ...

Los Angeles gets ‘F’ grade for air quality once again in national report Greater Los Angeles remains the smoggiest metropolitan area in the nation, according to a Lung Assn. report card.

But air quality can vary on a hyperlocal scale, meaning the network of official sites is "fairly sparse," says Michael Jerrett, an air pollution expert at the University of California, Los Angeles.

With the state of California under a stay-at-home order for the last several weeks because of the threat of coronavirus, Los Angeles’ notoriously dirty air has dramatically improved.

An air quality alert was reported by the NWS Los Angeles/Oxnard CA on Monday at 2:31 p.m. in effect until Thursday at 8:15 ...

Los Angeles County is included in an air quality alert reported by the National Weather Service on Monday at 2:31 p.m. The ...