Polychlorinated Naphthalenes (PCNs) in Surface Sediments of the Yangtze and Yellow River Estuaries,China  

作　　者：GUO Li GAO Lirong LI Aimin XIAO Ke 

机构地区：[1]Hubei Environmental Monitoring Central Station [2]State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

出　　处：《Wuhan University Journal of Natural Sciences》2013年第1期79-87,共9页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China(20677070, 20621703)

摘　　要：The concentrations and congener profiles of poly- chlorinated naphthalenes （PCNs） in surface sediment samples collected from the Yangtze and Yellow River Estuaries were inves- tigated. PCN congeners （from MoCNs to OCN） were determined by isotope dilution/high-resolution gas chromatography/high- resolution mass spectrometry （HRGC-HRMS）. The total concen- trations of PCNs were 34.3-303.0 pg/g （dry weight, dw） in the Yangtze Estuary samples and 6.2-408.0 pg/g （dw） in the Yellow River Estuary samples, which were lower compared with that in other sediments reported by previous studies. In addition, the re- markably different homologue or congener profiles of PCNs have been obtained in this study. Samples dominated with MoCNs to TrCNs might be attributed to atmospheric deposition and global fractionation, while in other samples taken from the surrounding industrial areas the enrichment of higher chlorinated homologues suggested that the industrial and human activities should be the main potential sources.The concentrations and congener profiles of poly- chlorinated naphthalenes （PCNs） in surface sediment samples collected from the Yangtze and Yellow River Estuaries were inves- tigated. PCN congeners （from MoCNs to OCN） were determined by isotope dilution/high-resolution gas chromatography/high- resolution mass spectrometry （HRGC-HRMS）. The total concen- trations of PCNs were 34.3-303.0 pg/g （dry weight, dw） in the Yangtze Estuary samples and 6.2-408.0 pg/g （dw） in the Yellow River Estuary samples, which were lower compared with that in other sediments reported by previous studies. In addition, the re- markably different homologue or congener profiles of PCNs have been obtained in this study. Samples dominated with MoCNs to TrCNs might be attributed to atmospheric deposition and global fractionation, while in other samples taken from the surrounding industrial areas the enrichment of higher chlorinated homologues suggested that the industrial and human activities should be the main potential sources.

关 键 词：polychlorinated naphthalenes （PCNs） SEDIMENTS Yangtze Estuary： Yellow River Estuarv 

分 类 号：X132[环境科学与工程—环境科学]