| Polychlorinated dibenzo-p-dioxins （PCDDs） and dibenzofurans （PCDFs） in surface sediment and bivalve from the Changjiang Estuary, China |
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| 引用本文： | 闻胜,惠阳,杨方星,刘征涛,徐盈.Polychlorinated dibenzo-p-dioxins （PCDDs） and dibenzofurans （PCDFs） in surface sediment and bivalve from the Changjiang Estuary, China[J].中国海洋与湖沼学报,2008,26(1):35-44. |
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| 作者姓名： | 闻胜 惠阳 杨方星 刘征涛 徐盈 |
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| 作者单位： | State Key Laboratory of Freshwater Ecology and Biotechnology，Institute of hydrobiology，Chinese Academy of Sciences，Wuhan 430072，China，Graduate School of Chinese Academy of Sciences，Beijing 100039，China |
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| 基金项目： | The study is financially supported by National Research Program （No. 2003CB415005） and “outh Chen-Guang Project” of Wuhan Bureau of Science and Technology （No. 200750731259）. |
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| 摘 要： | Surface sediments and bivalves were collected from the Changjiang Estuary in December 2003 and November 2004, respectively. Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in these samples were measured with high-resolution chromatography (HRGC)/High Resolution Mass Spectrometer (HRMS). The concentrations of total PCDD/Fs and toxic equivalent (TEQ) were 169.83±119.63 and 0.81±0.36 pg/g dry weight (dw) in sediments, and 580.33±240.17 and 7.24±3.65 pg/g dw in bivalves. The homolog compositions of PCDD/Fs were similar among samples, the most abundant congener was octa-chlorinated dibenzo-p-dioxin (OCDD) and then octa-chlorinated dibenzofuran (OCDF) and 1,2,3,4,6,7,8-hepta-chlorinated dibenzo-p-dioxin (HpCDD). The herbicide pentachlorophenol (PCP) and sodium pentachlorophenol (Na-PCP) were proved the main source of PCDD/Fs in this area.
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| 关 键 词： | 中国 长江河口 双壳类 高效液相色谱法 五氯苯酚 表面沉积物 |
| 文章编号： | 10.1007/s00343-008-0035-2 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006-11-05 |
Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary,China |
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| Wen?Sheng,Hui?Yang,Yang?Fangxing,Liu?Zhengtao,Xu?Ying.Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary,China[J].Chinese Journal of Oceanology and Limnology,2008,26(1):35-44. |
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| Authors: | Wen Sheng Hui Yang Yang Fangxing Liu Zhengtao Xu Ying |
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| Institution: | (1) State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China;(2) Graduate School of Chinese Academy of Sciences, Beijing, 100039, China;(3) Chinese Research Academy of Environmental Sciences, Beijing, 100012, China |
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| Abstract: | Surface sediments and bivalyes were collected from the Changiiang Estuary in December 2003 and November 2004,respectively.Polychlorinated dibenzo-p-dioxins(PCDDs)and dibenzofurans (PCDFs)in these samples were measured with high-resolution chromatography(HRGC)/High Resolution Mass Spectrometer (HRMS).The concentrations of total PCDD/Fs and toxic equivalent (TEQ) were 169.83±119.63 and 0.81±0.36 Pg/g dry weight(dw)in sediments,and 580.33±240.17 and 7.24±3.65 pg/g dw in bivalves.The homolog compositions of PCDD/Fs were similar among samples,the most abundant congener was octa-chlorinated dibenzo-p-dioxin (OCDD) and then octa-chlorinated dibenzofuran (OCDF) and 1,2,3,4,6,7,8-hepta-chlorinated dibenzo-p-dioxin(HpCDD).The herbicide pentachlorophenol(PCP) and sodium pentachlorophenol(Na-PCP)were proved the main source of PCDD/Fs in this area. |
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| Keywords: | bivalve high resolution gas chromatography (HRGC)/high resolution mass spectrometer (HRMS) polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs) pentachlorophenol(PCP) surface sediment |
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