Smoke from relief valve prompts level 2 emergency at Martinez Shell refinery


Only residents with pre-existing respiratory conditions or those sensitive to odors are being asked to shelter-in-place. Though there is no fire, black smoke has been seen coming out of a smokestack.

Contra Costa County health officials are looking into reports of natural gas type odors coming from the refinery.

Stay with ABC7 News for updates on this developing situation.

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