Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

Fresno ranked third among the worst U.S. cities for air pollution, according to the American Lung Association’s annual State ...

An air quality alert was reported by the NWS San Diego CA on Friday at 3:48 p.m. in effect until Saturday at 11:59 p.m. for Coachella Valley.

An air quality alert was reported by the NWS Phoenix AZ on Friday at 7:19 a.m. in effect until Sunday at midnight. The alert ...