Scientific testing has confirmed a link between oil from the massive BP spill and tar found on Alabama beaches after Hurricane Isaac.
Auburn University researcher Joel Hayworth said Tuesday a chemical analysis showed that tar balls collected after Isaac were associated with the type of oil spilled after the explosion on the Deepwater Horizon rig in 2010.
Auburn researchers collected about 15 pounds of tar balls after the storm, and officials from Gulf Shores and Orange Beach picked up still more.
BP is holding a media briefing in New Orleans to discuss its response after Isaac in Alabama, Florida, Louisiana and Mississippi.
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