Trophic transfer of mercury and methylmercury in an aquatic ecosystem impacted by municipal sewage effluents in Beijing, China
文献类型：会议论文
| 作者 | Fu, Jianjie; Wang, Yawei; Zhou, Qunfang; Jiang, Guibin |
| 出版日期 | 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. |
| 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. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。