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28 October 2010

Beaches can harbor hidden oil long after spills

Crude oil from a spill can remain trapped for decades under a beach’s surface. A 2001 survey of beaches along Alaska’s Prince William Sound estimated that about 100 tons of oil from the 1989 Exxon Valdez spill remained in the beaches’ lower layers, and much of it is still there, researchers say. A new study of one of those beaches found that the reason the oil becomes trapped in the …


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