An air quality alert was reported by the NWS San Diego CA on Thursday at 2:47 p.m. in effect until Saturday at midnight. The ...

As San Luis County's Madre Fire rips through California, air quality warnings are now being issued for nearby areas, ...

The Madre fire burning in San Luis Obispo County has grown to become the largest wildfire California has seen this year. It ...

Fireworks are happening across the city again this year, which poses two issues–highly concentrated pollution, and uniquely ...

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.

Smoke from the Madre Fire, which started Wednesday off Highway 166, is impacting the air quality for some communities on the ...

The Madre Fire, igniting on July 2, 2025, near Highway 166, has surged to become California's largest wildfire this year, scorching over 52,952 acres as of July 4.

Air quality is uniquely terrible after all those official and illegal fireworks are detonated to celebrate Independence Day.

A massive wildfire scorched 52,593 acres in the southeastern corner of San Luis Obispo County by Thursday evening, forcing ...

[Update: Thu., July 3, 5:36pm] The Madre Fire has expanded to 52,593 acres as of 5:17 p.m. on Thursday, still with only 5 ...

An air quality alert is in effect from 5 p.m. July 4 through midnight July 5 due to harmful levels of fine particle pollution ...

BayoTech, a global leader in hydrogen production and distribution solutions, today announced a strategic update to its Northern Calif. hydrogen development strategy.