Brominated flame retardants in eel from the Scheldt River (Belgium)
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Pharmacy
, p. 445-448
University of Antwerp
Brominated flame retardants (BFRs), such as polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD), were measured in pooled eel samples originating from different locations along the river Scheldt, including 2 reference locations (closed water bodies), all situated nearby Oudenaarde. Total HBCD levels (range 70 10 100 ng/ lipid weight) in the eel samples were measured by GC-MS and were higher than PBDE levels (40 1 010 ng/g lipid weight), probably related to the textile industries nearby Oudenaarde. The predominant PBDE congeners were BDE 47, 100, 99 and 49, originating from the former use of the Penta-BDE formulation. The high variation in contamination levels between the different sampling locations resulted in a variable contribution to the total human exposure through eel consumption, ranging between 3 ng and 327 ng/day for PBDEs for normal eel consumers. Decreasing contamination levels of PBDEs and HBCD over the period of 6 years were observed in eel for the same locations. However, these levels are still an order of magnitude higher than levels reported in other studies in Flanders.