Distribution of polybrominated diphenyl ethers and decabromodiphenylethanein surface sediments from Fuhe River and Baiyangdian Lake, North China
Guocheng Hu , Zhencheng Xu , Jiayin Dai , Bixian Mai , Hong Cao , Jianshe Wang , Zhimin Shi , Muqi Xu
DOI:
Received January 05, 2010,Revised March 17, 2010, Accepted , Available online
Volume 22,2010,Pages 1833-1839
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Nineteen surface sediment samples collected from Baiyangdian Lake and its inflowing river (Fuhe River) in North China were
analyzed for polybrominated diphenyl ethers (PBDEs) and decabromodiphenylethane (DBDPE). The concentrations of PBDEs and
DBDPE in sediments ranged from 5.5 to 300.7 ng/g dry weight (dw) and 1.1 to 68.2 ng/g dw, respectively. Their levels in sediments in
Fuhe River were significantly higher than those in Baiyandian Lake. Compared to data from other regions, the PBDE levels in surface
sediments from Baiyangdian Lake and Fuhe River were in the medium to lower range. Among the PBDE congeners, BDE209 was
predominant, with contributions to the total PBDEs ranging from 79.4% to 97.3% in sediment samples. For the lowly brominated
congeners (tri- to hepta-BDE), BDE47 and BDE99 were the most abundant, which contributed 52.1% and 44.1% to the sum of
tri- to hepta-BDEs in the sediments from Baiyangdian Lake and Fuhe River, respectively. The compositional patterns of PBDEs in
Baiyangdian Lake sediments indicated that technical deca-BDE mixture was the major pollutant sources with a minor contribution
of penta-BDE mixture. The present study suggested that the importance of Fuhe River as a possibly potential sources of PBDEs
contamination in Baiyangdian Lake.
