In situ high-resolution evaluation of labile arsenic and mercury in sediment of a large shallow lake
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- 作者：Chao Wang ; Yu Yao ; Peifang Wang ; Jun Hou ; Jin Qian ; Ye Yuan ; Xiulei Fan
- 关键词：Lake Hongze ; Arsenic ; Mercury ; Zr-oxide DGT ; 3-Mercaptopropyl functionalized silica gel DGT
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：541
- 期：Complete
- 页码：83-91
- 全文大小：1265 K
文摘
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In situ measurement of As and Hg by DGT was applied on a large scale.
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Zr-O DGT for As and 3-mercaptopropyl functionalized silica gel DGT for Hg were used.
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DGT-labile As/Hg in sediment profiles exhibited considerable variation at mm scale.
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Sediment acted as a sink and source of As and Hg to the lake.
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DGT technique is an effective and robust tool that could be widely applied.