The biogeochemical cycling of mercury in Hg mining areas in Guizhou, China

摘要：

Guizhou is known as the mercury capital of China because more than 70％ of total national Hg resources were discovered in this province and at least 12 large and super large-scale Hg mines have already been discovered and operated in the province We found that the railings and calcine from past large scale Hg mining activities are the important sources of Hg contamination to the local environment, such as surface water, soil compartment, food and vegetables. Concentrations of total Hg and methylmercury (MeHg) were measured in soil and vegetation samples collected from historic Hg-mining areas. Total Hg concentrations in soil and vegetation samples were highly elevated ranging from 0.41-610mg·kg<-1> and from 0.02-55mg·kg<-1>, respectively. MeHg concentrations varied from 0.41-8.8μg·kg<-1> in soil samples and from 0.65-5.5μg·kg<-1> in vegetations. The small scale mining activities have also resulted in serious Hg pollution to the local environment.

关键词： Crops methylmercury mercury mining soil surface water

作者: Xinbin Feng Guangle Qiu Ping Li Shaofeng Wang Guanghui Li

作者单位: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sc State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sc State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sc

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 473-474

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）