John Wiley & Sons, Ltd.

Bioaccumulation and distribution of perfloroalkyl acids in seafood products from Bohai Bay, China

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Ten perfluoroalkyl acids (PFAAs) were measured in the seafood collected from Bohai Bay, China, in 2010. The summed concentrations of the PFAAs were in the ranges of ND–194 and 4.0 to 304 ng/g dry weight for invertebrates and fish, respectively. The levels of perflurooctanesulfonate (PFOS) and perfluorooctanoic acid (PFOA) in the seafood were lower than those from North America, the Mediterranean Sea, and South Korea. Living habitat, trophic level, and feeding habits had important impacts on the bioaccumulation and distribution of PFAAs in the seafood. The species at higher trophic levels had the potential to accumulate more PFAAs than benthic invertebrates. Tidal‐flat organisms tended to accumulate more PFOA than PFOS, whereas the opposite was seen for shallow‐water species. For all the species, PFOS and PFOA were partitioned preferentially in the liver or viscera. Risk assessment indicated that the current level of PFAAs in the seafood of Bohai Bay does not represent an immediate source of harm to public health. Environ. Toxicol. Chem. © 2012 SETAC

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