BP oil spill blankets Gulf Sea bed
High levels of toxins have been found in a deadly blanket of oil on the sea floor measuring several centimeters thick - all of the microorganizms and worms found in the sediment were dead, according to scientists from the National Oceanic and Atmospheric Administration.
A thick layer of oil bearing the chemical signature of the BP Deepwater Horizon blow-out covers thousands of square miles of sea floor in the Gulf of Mexico, according to a federal report.
On a research vessel expedition, scientists from the National Oceanic and Atmospheric Administration (NOAA) and the University of South Florida found high levels of toxins in a deadly blanket of oil on the sea floor measuring several centimeters thick. Scientists said all the microorganisms and worms in the sediment were dead.
Using tests called biomarkers, University of South Florida oceanographer David Hollander traced the damage to the BP oil spill. Hollander said the chemical signatures are identical.