title: [Analysis of ecological risk and the content situation of polybrominated diphenyl ethers in sediments from Northeast China River Basin].
abstract: To investigate the polybrominated diphenyl ethers (PBDEs) pollution status, sediment samples were collected from major rivers in northeast China. Contents of 41 PBDEs congeners in sediments were measured using GC-NCI-MS. BDE209 was not detected, measured level of total PBDEs (excluding BDE209) ranged from 0.91 to 17.67 ng.g-1 dry weight, the highest concentrations of PBDEs were detected in the sediment samples from upstream and downstream of Jilin City in the Second Songhua River Basin, with 15.86 and 17.67 ng.g-1. BDE207 and BDE47 were the predominant PBDE congeners, with their concentrations accounting for 86. 5% and 76. 6% of the total PBDEs concentration measured in the samples. Each congener content difference was not obvious in other river sediments. PBDEs levels monitored in the present study were compared to those reported recently for districts located at home and abroad, and with ecological risk analysis. PBDEs content is at a low level in sediments of Northeast China River Basin and there is no ecological risk.
authors.affiliation: School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China. niehaifeng_@163.com
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Nie
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Hang-Xin
authors.initials: HX
authors.lastname: Cheng
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Chuan-Dong
authors.initials: CD
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Ying-Han
authors.initials: YH
authors.lastname: Liu
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Kuo
authors.initials: K
authors.lastname: Li
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Min
authors.initials: M
authors.lastname: Peng
authors.affiliation: Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Liu
mesh_terms: D002681:China; D004784:Environmental Monitoring; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000737:chemistry*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D018570:Risk Assessment; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; C511295:2,2',4,4'-tetrabromodiphenyl ether; C512045:2,2',3,3',4,4',5,6,6'-nonabromodiphenyl ether