Martinez refinery under investigation for hazardous ‘coke dust’

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The Bay Area Air Quality District received another report of “coke dust” coming out of the refinery in Martinez Saturday evening

Air quality officials teamed up with Contra Costa Health (CCH) to investigate further.

Investigation reveals that CCH hazmat crews and the Bay Area Air Quality District did not find evidence of the coke dust in the surrounding areas of the refinery located at 1801 Marina Vista Ave.

Coke dust is a byproduct of refining petroleum. The release of the coke dust was reported to be at 6:04 p.m.

On July 11, hazmat crews responded to a similar incident. 


Charlene is a Bay Area journalist who hails from the small community of Fresno. Drawing from her experience writing for her college paper, Charlene continues to advocate for free press and local journalism. She also volunteers in all the beach cleanups she can because she loves the water.