The Orange County and Santa Ana Mountains area is under an air quality alert which was reported by the National Weather ...

Opinion: Analysts will need more intelligence from more sources to make a confident judgment about the effects on Fordo and ...

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.

Los Angeles County is included in an air quality alert reported by the National Weather Service on Thursday at 2:43 p.m. The ...