Seafood testing from oil disaster could last years

The danger posed by the Gulf oil spill to the U.S. food supply is worse than previously thought, and could make testing of seafood necessary for decades to come, officials and scientists say.
Oil contains harmful chemicals such as polycyclic aromatic hydrocarbons that can cause cancer if ingested by humans in high concentrations, said LuAnn White of the Tulane University Center for Applied Environmental Public Health. However, she said monitoring efforts by the government and the seafood industry make the possibility of significant levels of toxic contamination "extremely unlikely … in anything that gets to market."
USA TODAY 5/18/2010