Is Gulf seafood really safe to eat?, Institute for Southern Studies, December 2010:
The Lower Mississippi Riverkeeper (LMRK) has released results from seafood sampling trips conducted along a broad area of the Louisiana coast since August. ...
"The high levels of petroleum hydrocarbons are troubling particularly since many of these species are consumed by people," the LMRK said in a press release. "It is our understanding that there should be no detectable levels of petroleum hydrocarbons in seafood."
LMRK noted that the seafood species appeared "pristine" and did not look or smell suspicious.
The group's sampling also showed that the oil contamination is moving up the food chain, with levels of total petroleum hydrocarbons in seagull guts collected from Terrebonne Parish on Aug. 19 at 23,302 mg/kg.
LMRK's chart can be seen here.