The LA area is once again the worst for ozone in the U.S., a pollutant impacting millions more people nationwide, the ...

Los Angeles is the smoggiest U.S. city for the 25th time in 26 years, despite reducing unhealthy ozone days by 40% since 2000 ...

Monitoring systems are not all encompassing and do not always pick up all of the hundreds of harmful chemicals released, ...

UCLA's annual survey reveals growing concerns over the high cost of living and deportation fears among LA County residents.

When it comes to quality of life in Los Angeles County, a majority of people who responded to the 10th Annual UCLA/Luskin ...