It hasn't won the merest fraction of the coverage enjoyed by the London Olympics, but last week's massive Chevron oil refinery fire in Richmond, Calif., sent hundreds of people rushing to hospitals, darkened the skies over East Bay, and has gasoline prices headed back up towards $4 a gallon. AP notes this "was just the latest pollution incident at the facility that records show has increasingly violated air quality rules over the past five years. The refinery is one of three such facilities near San Francisco that rank among the state's top 10 emitters of toxic chemicals, according to the US Environmental Protection Agency's Toxic Release Inventory. Chevron's Richmond refinery...has been cited by San Francisco Bay area regulators for violating air regulations 93 times in the past five years."