Environmental geochemistry of an abandoned mercury mine in Yanwuping, Guizhou Province, China

	Environmental geochemistry of an abandoned mercury mine in Yanwuping, Guizhou Province, China
	Guangle Qiu; Xinbin Feng; Bo Meng; Chao Zhang; Chunhao Gu; Buyun Du; Yan Lin
	2013
发表期刊	Environmental Research
卷号	125 期号:SI 页码:124-130
摘要	The distribution of mercury (Hg) and methylmercury (MeHg) in paddy soil and rice grain (polished), and Hg in surface waters and gaseous elemental Hg (GEM) in atmosphere at the Yanwuping Hg mining district (YMM), Guizhou Province, China was investigated. Results exhibited high total Hg (Hg-T) and MeHg concentrations in soil at sites adjacent to calcine pile and tailings, and ranged from 5.6 to 240 mg kg(-1) and 0.66 to 7.3 mu g kg-1, respectively. Concentrations of Hg-T in rice ranged from 10 to 45 mu g kg(-1), and high MeHg concentrations were also observed ranging from 3.2 to 39 mu g kg(-1). The elevated Hg-T and MeHg concentrations in soil in the vicinity of calcine pile and tailings reflected in high MeHg concentrations in rice. Those data were significantly correlated with MeHg concentration in soil confirming that soil is the major source of MeHg in rice. The highest Hg concentrations in water, otherwise rather low, ranging from 3.8 to 51 ng l(-1) for Hg-T and of 0.14 to 2.7 ng l(-1) for MeHgT, were found at the proximity of calcine pile suggesting that untreated mine wastes are the principal source of Hg in the nearby area. Huge emissions of GEM were also detected from calcines affecting the whole area, ranging from 12 to 180 ng m(-3) with an average of 46 +/- 35 ng m(-3). The distribution patterns of Hg and MeHg observed in the environmental compartments suggest an elevated contamination of Hg in the region. Elevated high MeHg concentrations in rice might pose a potential health risk to local populations.
关键词	Total Mercury Methylmercury Environmental Compartments Yanwuping Mercury Mine China
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5037
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文环境地球化学国家重点实验室
推荐引用方式 GB/T 7714	Guangle Qiu,Xinbin Feng,Bo Meng,et al. Environmental geochemistry of an abandoned mercury mine in Yanwuping, Guizhou Province, China[J]. Environmental Research,2013,125(SI):124-130.
APA	Guangle Qiu.,Xinbin Feng.,Bo Meng.,Chao Zhang.,Chunhao Gu.,...&Yan Lin.(2013).Environmental geochemistry of an abandoned mercury mine in Yanwuping, Guizhou Province, China.Environmental Research,125(SI),124-130.
MLA	Guangle Qiu,et al."Environmental geochemistry of an abandoned mercury mine in Yanwuping, Guizhou Province, China".Environmental Research 125.SI(2013):124-130.

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