Air quality is in the "unhealthy" range for an area around La Pine in Oregon, and Portola in California on Tuesday morning.

The Bay Area Air District has issued Spare the Air alerts for this Wednesday and Thanksgiving Day, marking the region's first ...

On Monday at 12:55 p.m. an air quality alert was reported by the NWS San Diego CA in effect until Wednesday at midnight. The alert is for San Bernardino and Riverside County Valleys-The Inland Empire, ...

U nhealthy levels of air pollution have prompted an unofficial lockdown in three states across the U.S. The states of ...

Committee for A Better Arvin argued that the EPA wrongly approved pollution controls, called contingency measures, for the ...

Environmental groups say the EPA is dragging its feet implementing new pollution reduction plans, affecting the health and ...

The departure points to an intractable conflict between environmental justice groups and the California Air Resources Board ...

Air quality in Southern California was mostly good Monday morning, but don’t expect that to last. Along with an incoming heat wave that will envelop much of the Southland, portions of the Inland ...

DIAMOND BAR, Calif. (AP) — Air quality regulators in Southern California voted 7 to 5 to reject rules that would have curbed harmful emissions from gas-powered furnaces and water heaters, but the ...

PALO ALTO, Calif. (KGO) -- The Bay Area's record-breaking streak of poor air quality could cost thousands of lives, according to a new calculation by Stanford researchers. Marshall Burke, an associate ...

Residents in southern California, are facing poor air quality due to particle pollution over parts of the Memorial Day weekend, according to officials. "Particle pollution can get deep into the lungs ...

Air quality is in the "unhealthy" range across several counties in Oregon and California on Wednesday morning.