Gulf oil spill http://apr.org en Study: Virtually All Ala. Tar Balls From BP Spill http://apr.org/post/study-virtually-all-ala-tar-balls-bp-spill <P>A new chemical analysis shows that virtually all the tar balls now washing on to the Alabama coast are directly linked to the BP oil spill more than two years ago.</P> <P>The report released Thursday by Auburn University says that tar balls caused by the spill are hundreds to thousands of times more common than another type of asphalt-like tar deposit that's been in the Gulf for years.</P> <P>Researchers tested tar found on Alabama beaches after Hurricane Isaac last month. Thu, 20 Sep 2012 21:56:09 +0000 The Associated Press 18169 at http://apr.org Study: Virtually All Ala. Tar Balls From BP Spill