A dense blanket of winter smog settled over Southern California on Tuesday, December 9, 2025, prompting an extraordinary ...
Los Angeles County is the focus of an air quality alert reported at 6:07 a.m. on Friday by the National Weather Service. The alert is in effect until Saturday Nov. 29, at midnight.
The study, conducted by DIPNDIVE, evaluated cities based on their pollution levels, factoring in air quality, water quality, ...