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题名: PCDD/Fs and PCBs in sediments of the Liaohe River, China: Levels, distribution, and possible sources
作者: Zhang, Haijun1;  Zhao, Xiaofeng1;  Ni, Yuwen1;  Lu, Xianbo1;  Chen, Jiping1;  Su, Fan1;  Zhao, Liang1;  Zhang, Ning1;  Zhang, Xueping1
关键词: PCDD/Fs ;  PCBs ;  Sediment ;  Possible source ;  Congener profile
刊名: CHEMOSPHERE
发表日期: 2010-04-01
DOI: 10.1016/j.chemosphere.2010.02.039
卷: 79, 期:7, 页:754-762
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The contamination status of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in the surface sediments of the middle and lower reaches of the Liaohe River, which is one of the most heavily polluted rivers in China, were investigated. The concentrations of PCDD/Fs and PCBs were in the range of 0.24-27.49 ng WHO-TEQ kg(-1) (average value: 3.01 ng WHO-TEQ kg(-1)) and 0.015-0.99 ng WHO-TEQ kg(-1) (average value: 0.33 WHO-TEQ kg(-1)), respectively. For most sediment samples, the pollution levels of PCDD/Fs and PCBs exceeded the interim sediment quality guidelines (ISQGs) established by the Canadian Council of Ministers of the Environment. The highest level of PCDD/F contamination was found at the Tai'an reach of the Liaohe River, whereas the highest level of PCB contamination was found at the Xinmin reach of the Liaohe River. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were applied to the data set of sediment samples and to source-related samples from the literature. The results suggested that, PCDD/F contamination in most sediments of the middle and lower reaches of the Daliao River should mainly originated from the local combustion processes, including coal burning, agricultural straw open burning, iron ore sintering, cement production and secondary Al and Cu metallurgy. For the PCBs, the major source was identified as the usage of technical PCB products, especially Chinese No. 1 PCB. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: DIBENZO-P-DIOXINS ;  HISTORICAL EMISSION INVENTORY ;  POLYCHLORINATED-BIPHENYLS ;  SURFACE SEDIMENTS ;  YANGTZE-RIVER ;  MASS-BALANCE ;  PADDY SOILS ;  PATTERNS ;  DELTA ;  PAPER
语种: 英语
WOS记录号: WOS:000278131100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141854
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, Haijun,Zhao, Xiaofeng,Ni, Yuwen,et al. PCDD/Fs and PCBs in sediments of the Liaohe River, China: Levels, distribution, and possible sources[J]. CHEMOSPHERE,2010,79(7):754-762.
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