Bioaccumulation kinetics of sediment-associated DE-83 in benthic invertebrates (Nereis succinea, polychaete)

► Sediment-associated nona- and deca-BDEs are bioavailable to polychaete (Nereis succinea). ► Nona- and deca-BDEs were eliminated quickly with half lives of 0.7 d. ► The great log Kow and large molecular size restrict the uptake of nona- and deca-BDEs. ► The extremely low BSAFs of nona- and deca-BDEs suggest their low bioavailability in the sediment. ► BDE-209 could be biotransformed to BDE-207 and -208 in the worms.