Microbes are breaking down Gulf of Mexico oil spill [Excerpts]
A top scientist studying the ability of bacteria to break down the oil plume in the Gulf of Mexico says that microbes have been so successful that the oil may be gone.
Terry Hazen, a microbial ecologist at the Lawrence Berkeley National Laboratory who published a groundbreaking study of microbial activity Tuesday in the online research journal Science Express, has had a team of researchers out in the Gulf since May 25 collecting water samples. They noticed a dramatic drop-off in the amount of oil in the Gulf immediately after the well was idled July 15, and now they can't find any oil in the ocean.
Although many have cast doubt upon an Aug. 4 report by the National Oceanic and Atmospheric Administration and other governmental agencies that just 26 percent of the estimated 4.9 million barrels of oil released from blown out BP well remains onshore and at sea, Hazen is even more optimistic that oil is disappearing rapidly.
Hazen's team of researchers believe that the large amount of natural oil seeps in the area have helped the bacteria to adapt to oil in their environment over a long period of time, so when the BP blowout came long, they thrived. Even as the amount of oil in water increased the longer the well flowed, microbe levels remained constant, suggesting that they were able to keep pace with the oil.
"The bugs in this area have become adapted to using oil as a carbon source," Hazen said.
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