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Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China
Chen, Lei1,2,3; Bi, Yonghong1; Zhu, Kongxian1; Hu, Zhengyu1; Zhao, Wei1; Henkelmann, Bernhard5; Bernhoeft, Silke5; Temoka, Cedrique4,5; Schramm, Karl-Werner4,5; Bi, YH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2013-06-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume20Issue:6Pages:4268-4277
AbstractIn 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.; 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.
SubtypeArticle
KeywordDioxins Sediment Core Three Gorges Dam (Tgd)
Department[Chen, Lei ; Bi, Yonghong ; Zhu, Kongxian ; Hu, Zhengyu ; Zhao, Wei] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Chen, Lei] China Three Gorges Cooperat, Three Gorges Complex Adm Bur, Yichang 443133, Peoples R China ; [Chen, Lei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Temoka, Cedrique ; Schramm, Karl-Werner] TUM, Wissensch Zentrum Weihenstephan Ernahrung & Landn, Dept Biowissensch, D-85350 Freising Weihenstephan, Germany ; [Henkelmann, Bernhard ; Bernhoeft, Silke ; Temoka, Cedrique ; Schramm, Karl-Werner] German Res Ctr Environm Hlth GmbH, Helmholtz Zentrum Munchen, Mol EXpos MEX, D-85764 Neuherberg, Germany
DOI10.1007/s11356-012-1447-2
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationChinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000318779200073
WOS KeywordPOLYBROMINATED DIPHENYL ETHERS ; DIBENZO-P-DIOXINS ; YANGTZE-RIVER ; ESTUARY ; LAKE ; SAMPLES ; SEA
Funding OrganizationChinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130] ; Chinese National Major Programs of Water Body Pollution Control and Remediation [2009ZX07104-005]; German Ministry of Education and Research (BMBF) [02WT1130]
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19348
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorBi, YH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.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
Recommended Citation
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.,...&Bi, YH .(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.
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