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	Trophic transfer of mercury and methylmercury in an aquatic ecosystem impacted by municipal sewage effluents in Beijing, China
	Fu, Jianjie; Wang, Yawei; Zhou, Qunfang; Jiang, Guibin
	2010
会议名称	9th International Conference on Mercury as a Global Pollutant
会议日期	JUN, 2009
会议地点	Guiyang, PEOPLES R CHINA
关键词	methylmercury total mercury trophic levels aquatic ecosystem municipal sewage treatment plants
英文摘要	Gaobeidian Lake, located in Beijing, China, serves as a recipient lake for effluents from a large municipal sewage treatment plant (MSTP). In order to evaluate the effects of discharging MSTP effluent on the mercury contamination of the local aquatic ecosystem, sediment cores, water, plankton, fish, and turtle samples were collected from Gaobeidian Lake for mercury speciation analysis. High concentrations of total mercury (T-Hg) were detected in sediment cores (5.24-17.0 mu g/g dry weight (dw), average: 10.1 mu g/g). The ratio of methylmercury (MeHg) to T-Hg was less than 0.3% in sediments and ranged from 35% to 76% in biota samples. The highest level of T-Hg and MeHg were found in aquatic bryophyte and crucian carp (3673 and 437 ng/g dw, respectively). The relative contents of MeHg were significantly correlated with trophic levels (R-2 = 0.5506, p < 0.001), which confirmed that MeHg can be bio-transferred and biomagnified via food chain in this aquatic ecosystem.
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24639]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Fu, Jianjie,Wang, Yawei,Zhou, Qunfang,et al. Trophic transfer of mercury and methylmercury in an aquatic ecosystem impacted by municipal sewage effluents in Beijing, China[C]. 见:9th International Conference on Mercury as a Global Pollutant. Guiyang, PEOPLES R CHINA. JUN, 2009.

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