Many rational voices loudly protested when BP began using chemical dispersants on the deepwater horizon spill. They weren't safe, people said. They were untested in such conditions, people said. They will thin the oil out and spread it everywhere, people said.
And those people were right.
Corexit BP Oil Spill Effects on Marine Life—Deepwater Horizon Oil Spill
Sawyer tested edible fish and shellfish from the Gulf for absorption of petroleum hydrocarbon (PHC), believed to have been facilitated by Corexit. Tissue samples taken prior to the accident had no measurable PHC. But after the oil spill, Sawyer found tissue concentrations up to 10,000 parts per million, or 1 percent of the total. The study, he said, “shows that the absorption [of the oil] was enhanced by the Corexit.”
In April 2012, Louisiana State University’s Department of Oceanography and Coastal Sciences was finding lesions and grotesque deformities in sea life—including millions of shrimp with no eyes and crabs without eyes or claws—possibly linked to oil and dispersants.
The shocking story was ignored by major U.S. media, but covered in depth by Al Jazeera. BP said such deformities were “common” in aquatic life in the Gulf and caused by bacteria or parasites. But further studies point back to the spill.
A just-released study from the University of South Florida found that underwater plumes of BP oil, dispersed by Corexit, had produced a “massive die-off” of foraminifera, microscopic organisms at the base of the food chain. Other studies show that, as a result of oil and dispersants, plankton have either been killed or have absorbed PAHs before being consumed by other sea creatures.
Hydrocarbon-laden, mutated seafood is not the only legacy left behind by Corexit, many scientists, physicians, environmentalists, fishermen, and Gulf Coast residents contend. Earlier this week, TakePart wrote about Steve Kolian, a researcher and founder of the nonprofit group EcoRigs, whose volunteer scientists and divers seek to preserve offshore oil and gas platforms after production stops, for use as artificial reefs and for alternative energy production.