SAN DIEGO (KGTV) -- Many drivers around San Diego say they’re worried about being cited after seeing what some people call “smog checkpoints.” Motorists recently came across one of the mobile smog ...

Smog warnings issued: The National Weather Service has issued air quality alerts for Southern California's Imperial Valley and Arizona's Phoenix metro area due to unhealthy ozone levels. Sewage crisis ...

SAN DIEGO – San Diego County remains behind on meeting a key air quality standard despite a slight decrease in emissions over the last five years, according to a new report from the San Diego County ...