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Posted Fri Aug 20 2010: from
PhysOrg:
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Scientists map and confirm BP origin of large, underwater hydrocarbon plume in Gulf http://apocadocs.com/s.pl?1282321093
Scientists at the Woods Hole Oceanographic Institution (WHOI) have detected a plume of hydrocarbons that is at least 22 miles long and more than 3,000 feet below the surface of the Gulf of Mexico, a residue of the BP Deepwater Horizon oil spill. In the study, which appears in the Aug. 19 issue of the journal Science, the researchers measured distinguishing petroleum hydrocarbons in the plume and, using them as an investigative tool, determined that the source of the plume could not have been natural oil seeps but had to have come from the blown out well.
Moreover, they reported that deep-sea microbes were degrading the plume relatively slowly, and that it was possible that the 1.2-mile-wide, 650-foot-high plume had and will persist for some time.... The levels and distributions of the petroleum hydrocarbons show that "the plume is not caused by natural [oil] seeps" in the Gulf of Mexico, Camilli added.... The plume has shown that the oil already "is persisting for longer periods than we would have expected," Camilli said. "Many people speculated that subsurface oil droplets were being easily biodegraded.
"Well, we didn't find that. We found it was still there."... Reddy said the WHOI team members know the chemical makeup of some of the plume, but not all of it. Gas chromatographic analysis of plume samples confirm the existence of benzene, toluene, ethybenzene, and total xylenes—together, called BTEX at concentrations in excess of 50 micrograms per liter. “The plume is not pure oil,” Camilli said. “But there are oil compounds in there.”
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[Read more stories about:
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'Doc Michael says:
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A "plume" is too pretty. How about we call it a "massive man-made storm of ocean toxicity"?
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Jesus: 22 miles long, 1.2 miles wide, 65 stories tall (650 feet). That's not a "plume."
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