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

An annual report from the American Lung Assn. showed that Los Angeles has improved its air quality but still deserves its ...

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.