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Gallons of chemical mixture Corexit 9500 BP has used – both above and below the surface – to break up the Gulf of Mexico oil spill.

May 21, 2010 •

Andy Kim

Gallons of chemical mixture Corexit 9500 BP has used – both above and below the surface – to break up the Gulf of Mexico oil spill.

Andy Kim

Andy Kim

Andy Kim is a former GOVERNING staff writer.

See More Stories by Andy Kim