Refinery fire in California
A fire at one of the country's largest refineries spewed thick black smoke over cities in the San Francisco Bay area, sending scores of residents to hospitals.
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Chevron Richmond Refinery
Smoke pours from a fire at the Chevron Richmond Refinery, seen behind Alcatraz Island in San Francisco, Monday, Aug. 6, 2012.
Credit: AP Photo/Eric Risberg
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