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The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang
HE Tianrong;  LI Ting;  Yang Ruidong;   LUO Guangjun;   LANG Xiaofang;   An Yanling;  YAN Haiyu
2013
Source PublicationChinese Journal of Geochemistry
Volume32Issue:1Pages:104-109
Abstract

In this paper, the relationship between sulfate reduction potential and mercury methylation potential was studied in the Aha, Baihua and Hongfeng reservoirs from Guiyang City. The methylmercury (MeHg) concentrations of lake water in the Aha Reservoir were greatly elevated as compared to those of the Hongfeng and Baihua reservoirs, which was correlated with its distinctly high SRB abundance, SO4 2-, and S2- concentrations. Among the three reservoirs, however, the highest MeHg was observed in in the top several centimenters of pore water profile in the Hongfeng Reservoir where the lowest S2- in pore water occurred. The distributions of MeHg in lake water and pore water showed the highest methylation potential occurred at water-sediment surface for the Aha Reservoir and the in the top several centimenters of sediments for the Hongfeng Reservoir. It is guessed that the highest mercury methylation only occurs at the sites with certain sulfide concentrations.

KeywordSulfate Reduction Methylmercury Sulfate-reducing Bacterium Pore Water Hongfeng, Aha And Baihua Reservoirs
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8317
Collection环境地球化学国家重点实验室
Affiliation1.Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou University, Guiyang 550003, China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Recommended Citation
GB/T 7714
HE Tianrong;LI Ting;Yang Ruidong; LUO Guangjun; LANG Xiaofang; An Yanling;YAN Haiyu. The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang[J]. Chinese Journal of Geochemistry,2013,32(1):104-109.
APA HE Tianrong;LI Ting;Yang Ruidong; LUO Guangjun; LANG Xiaofang; An Yanling;YAN Haiyu.(2013).The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang.Chinese Journal of Geochemistry,32(1),104-109.
MLA HE Tianrong;LI Ting;Yang Ruidong; LUO Guangjun; LANG Xiaofang; An Yanling;YAN Haiyu."The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang".Chinese Journal of Geochemistry 32.1(2013):104-109.
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