Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China
文献类型：期刊论文
| 作者 | Chen, Lei1,2,3; Bi, Yonghong1; Zhu, Kongxian1; Hu, Zhengyu1; Zhao, Wei1; Henkelmann, Bernhard5; Bernhoeft, Silke5; Temoka, Cedrique4,5; Schramm, Karl-Werner4,5 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 20期号:6页码:4268-4277 |
| 关键词 | Dioxins Sediment core Three Gorges Dam (TGD) |
| ISSN号 | 0944-1344 |
| 通讯作者 | Bi, YH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. |
| 中文摘要 | In order to screen dioxin pollution in sediment of Three Gorges Dam (TGD) area, three sediment cores were obtained from two sites in 2010 similar to 2011; each core was divided into different samples with every 10 cm depth. Sediment dating determined by radiometry (Cs-137, Pb-210) and concentrations of dioxins were analyzed by high-resolution gas chromatography/mass spectrometry. The results indicated: Sediment dating showed no significant difference among all the samples from the same core and the two locations (ANOVA, p > 0.05). The total amount of polychlorinated dibenzo-p-dioxins (PCDD)/Fs in all sample ranged from 30.7 to 371 pg/g dry weight (d.w.), with the mean value of 66.2 pg/g d.w. PCDDs occupied 60.33 similar to 85.22 % of dioxins in each sample, and PCDFs contributed to a very small extend. There was no significant difference in the dioxin concentration between 2010 and 2011 and in the two locations (t test, p > 0.05), but the vertical distribution of dioxins showed significant different in different depths. Toxic equivalent (TEQ) (WHO 2005, Humans) of samples ranged from 0.15 to 1.60 pg/g d.w.; the mean was 0.41 pg/g d.w. No significant difference was found in TEQ between 2010 and 2011(t test, p > 0.05). It could be concluded that the distribution of dioxins showed the spatial heterogeneous which resulted from the strong mixing and sediment deposition characteristics. Dioxin concentration in sediment cores was low with very low environmental risk potential. Dioxins at the two sites had the same origin, and exogenous input was the main source. It is the first report on the dioxins concentrations in sediment cores in the TGD area. |
| 英文摘要 | In order to screen dioxin pollution in sediment of Three Gorges Dam (TGD) area, three sediment cores were obtained from two sites in 2010 similar to 2011; each core was divided into different samples with every 10 cm depth. Sediment dating determined by radiometry (Cs-137, Pb-210) and concentrations of dioxins were analyzed by high-resolution gas chromatography/mass spectrometry. The results indicated: Sediment dating showed no significant difference among all the samples from the same core and the two locations (ANOVA, p > 0.05). The total amount of polychlorinated dibenzo-p-dioxins (PCDD)/Fs in all sample ranged from 30.7 to 371 pg/g dry weight (d.w.), with the mean value of 66.2 pg/g d.w. PCDDs occupied 60.33 similar to 85.22 % of dioxins in each sample, and PCDFs contributed to a very small extend. There was no significant difference in the dioxin concentration between 2010 and 2011 and in the two locations (t test, p > 0.05), but the vertical distribution of dioxins showed significant different in different depths. Toxic equivalent (TEQ) (WHO 2005, Humans) of samples ranged from 0.15 to 1.60 pg/g d.w.; the mean was 0.41 pg/g d.w. No significant difference was found in TEQ between 2010 and 2011(t test, p > 0.05). It could be concluded that the distribution of dioxins showed the spatial heterogeneous which resulted from the strong mixing and sediment deposition characteristics. Dioxin concentration in sediment cores was low with very low environmental risk potential. Dioxins at the two sites had the same origin, and exogenous input was the main source. It is the first report on the dioxins concentrations in sediment cores in the TGD area. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | POLYBROMINATED DIPHENYL ETHERS ; DIBENZO-P-DIOXINS ; YANGTZE-RIVER ; ESTUARY ; LAKE ; SAMPLES ; SEA |
| 收录类别 | SCI |
| 资助信息 | Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] |
| 语种 | 英语 |
| WOS记录号 | WOS:000318779200073 |
| 公开日期 | 2013-10-31 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/19348]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.China Three Gorges Cooperat, Three Gorges Complex Adm Bur, Yichang 443133, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.TUM, Wissensch Zentrum Weihenstephan Ernahrung & Landn, Dept Biowissensch, D-85350 Freising Weihenstephan, Germany 5.German Res Ctr Environm Hlth GmbH, Helmholtz Zentrum Munchen, Mol EXpos MEX, D-85764 Neuherberg, Germany |
| 推荐引用方式 GB/T 7714 | Chen, Lei,Bi, Yonghong,Zhu, Kongxian,et al. Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2013,20(6):4268-4277. |
| APA | Chen, Lei.,Bi, Yonghong.,Zhu, Kongxian.,Hu, Zhengyu.,Zhao, Wei.,...&Schramm, Karl-Werner.(2013).Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,20(6),4268-4277. |
| MLA | Chen, Lei,et al."Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 20.6(2013):4268-4277. |
入库方式： OAI收割
来源：水生生物研究所
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