NDLI: Chlorinated and brominated dibenzo-<i>p</i>-dioxins and dibenzofurans in surface sediment from Taihu Lake, China

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Journal of Environmental Monitoring Vol - 14 Issue - 6

Journal of Environmental Monitoring Vol - 14 Issue - 5

Journal of Environmental Monitoring Vol - 14 Issue - 4

Journal of Environmental Monitoring Vol - 14 Issue - 3

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Journal of Environmental Monitoring Vol -2

Chlorinated and brominated dibenzo-p-dioxins and dibenzofurans in surface sediment from Taihu Lake, China

Content Provider	Royal Society of Chemistry (RSC)
Author	Fu, Jiamo Zeng, Xiangying Sheng, Guoying Zhou, Lin Li, Huiru Yu, Zhiqiang Ren, Man Peng, Ping'an
Copyright Year	2012
Abstract	Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) in surface sediment samples from Taihu Lake—an important water supply of the Yangtze River Delta, China—were investigated in the present study. Concentrations of PCDD/Fs ranged from 0.91 to 4.8 pg TEQ g−1 dw (mean: 2.9 pg TEQ g−1 dw, TEQ: Toxic Equivalent), which were all higher than the threshold effect level established by interim sediment quality guidelines in Canada (0.85 pg TEQ g−1 dw). The levels of PBDD/Fs ranged from 0.16 to 1.6 pg TEQ g−1 dw (mean: 0.52 pg TEQ g−1 dw) and accounted for 5–33% (mean: 14%) of the total PCDD/Fs and PBDD/Fs TEQ. Comparatively, the abundance of sedimentary PCDD/Fs in the three regions (Meiliang Bay, Gonghu Bay, and Xukou Bay) showed a decreasing trend from the inflow region to the outflow region, while no significant difference was observed among their 2,3,7,8-PBDD/Fs levels, which suggested that the sources of PCDD/Fs and PBDD/Fs differed in this area. Principal component analysis suggested that the historical production/usage of pentachlorophenol and sodium pentachlorophenate was the dominant source of PCDD/Fs in the sediment of these regions. Although the specific sources of PBDD/Fs in the sediment of Taihu Lake were unclear, it was suspected to be due to atmospheric deposition; however, an additional study is needed to confirm this.
Starting Page	1935
Ending Page	1942
Page Count	8
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	14
Issue Number	7
Journal	Journal of Environmental Monitoring
DOI	10.1039/c2em10818f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Taihu Lake Yangtze River Delta China Canada Meiliang Bay Gonghu Bay Xukou Bay Polychlorinated dibenzodioxins Polybrominated biphenyl Sediment Principal component analysis Pentachlorophenol Sodium
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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