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22-mile-long oily plume mapped near BP well site

22-mile-long oily plume mapped near BP well site --Study is first peer-reviewed look at ecosystem concern -- and questions U.S. optimism 19 Aug 2010 Scientists on Thursday reported results from the first detailed study of a giant plume of oily water near the blown-out BP well -- stating that it measured at least 22 miles long, more than a mile wide and 650 feet tall. While other scientists earlier found evidence of plumes in the area, the new data is the first peer-reviewed study about oil lurking in the water, in this case at some 3,000 feet below the surface.