title: Distribution of polybrominated diphenyl ethers and decabromodiphenylethane in surface sediments from Fuhe River and Baiyangdian Lake, North China.
abstract: 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.
authors.affiliation: Metropolitan Environment Center, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China. huguocheng@scies.org
authors.forename: Guocheng
authors.initials: G
authors.lastname: Hu
authors.forename: Zhencheng
authors.initials: Z
authors.lastname: Xu
authors.forename: Jiayin
authors.initials: J
authors.lastname: Dai
authors.forename: Bixian
authors.initials: B
authors.lastname: Mai
authors.forename: Hong
authors.initials: H
authors.lastname: Cao
authors.forename: Jianshe
authors.initials: J
authors.lastname: Wang
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Shi
authors.forename: Muqi
authors.initials: M
authors.lastname: Xu
mesh_terms: D001969:Bromobenzenes / Q000032:analysis*; D002681:China; D004785:Environmental Pollutants / Q000032:analysis*; D005843:Geography; D019015:Geologic Sediments / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D025341:Principal Component Analysis; D045483:Rivers
chemical_list: D001969:Bromobenzenes; D004785:Environmental Pollutants; D055768:Halogenated Diphenyl Ethers; C491509:decabromodiphenyl ethane