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

Wednesday will bring another day of slightly below average temperatures. Look for patchy drizzle and fog in the morning along ...

The Los Angeles-Long Beach ranked as the nation’s smoggiest region in a report released Wednesday by the American Lung ...

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