Los Angeles County is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...

Freeway north of LA is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...

Los Angeles braces for a hot day with an Air Quality Alert due to high ozone levels, affecting sensitive groups and advising precautions like staying indoors and limiting outdoor activities.

Nevertheless, it still received “F” grades for ozone and two types of particle pollution. Los Angeles County registered 109 unhealthy ozone days, down from 159 in 2005; while Riverside County ...

The Los Angeles-Long Beach metropolitan area had the worst ozone pollution in the nation between 2015 and 2017, and also ranked among the worst in terms of particle pollution, or soot, according ...

Los Angeles-Long Beach area topped list in 23 of 24 years that Lung Association has ranked cities. But it improved slightly in unhealthy ozone days, particle pollution days.

LOS ANGELES (CBSLA) – It's not a distinction to take pride in: Los Angeles continues to have the worst ozone pollution of any metropolitan area in the United States. A new annual report released ...

The South Coast Air Quality Management District, the agency that tracks air quality for Southern California, recorded the highest ozone or smog pollution reading since 1994 for Los Angeles over the ...

With respect to ozone pollution, "Los Angeles remains at the top of this list, as it has for all but one of the 19 reports. Los Angeles also recorded more unhealthy air days in this report, ...

Los Angeles, Visalia, Bakersfield, Fresno and San Diego were among the list of cities most polluted by ozone. Bakersfield, Visalia, Fresno, Los Angeles and Sacramento were in the top 10 for worst ...

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 ...

On Wednesday at 5:03 p.m. the NWS Los Angeles/Oxnard CA reported an updated air quality alert in effect until Thursday at ...