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	Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 1-total mercury
	Zhang, Hua1,2; Feng, Xinbin1; Larssen, Thorjorn3,4; Shang, Lihai1; Vogt, Rolf D.4; Rothenberg, Sarah E.1; Li, Ping1; Zhang, Hui1,2; Lin, Yan4
刊名	Applied geochemistry
	2010-05-01
卷号	25期号:5页码:633-641
ISSN号	0883-2927
DOI	10.1016/j.apgeochem.2010.01.006
通讯作者	Feng, xinbin(fengxinbin@vip.skleg.cn)
英文摘要	The wanshan hg mining area in guizhou, china, was one of the world's largest hg producing regions. numerous mine-waste and calcines still remain, leaching hg to local rivers and streams and potentially impacting the local population. several studies have been published on local environmental impacts of these mining and retorting residues, but a comprehensive, regional survey on the distribution of hg in the rivers in the region, as presented in this paper, has not previously been conducted. this study focuses on the regional distribution and temporal variation of aqueous hg fractions in the five main watercourses draining the wanshan hg mining and retorting area, covering more than 700 km(2). three sampling campaigns were carried out in 2007 and 2008, covering high flow, normal flow and low flow periods. total (thg), particulate (phg), dissolved (dhg) and reactive (rhg) hg fractions were determined. all rivers had the highest hg concentrations at sample sites about 100-500 m downstream of the mine wastes. total hg concentrations ranged from extremely high (up to 12,000 ng l(-1)) at the sample site just 100 m below mine wastes, to quite low in tributary streams (1.9 ng l(-1), about 14 km downstream of the mine wastes). total hg and phg concentrations were usually highest during high flow periods in the hg-contaminated areas (i.e. thg >= 50 ng l(-1)), while in the less-impacted downstream areas (with thg < 50 ng l(-1)) the hg concentrations were usually lowest during high flow periods. although highly elevated concentrations of hg in water samples were found just downstream of the mine wastes, the concentrations decreased sharply to well below 50 ng l(-1) (us epa hg concentration standard for protection of fresh water), within only 6-8 km downstream. concentrations of thg were highly dominated by and correlated with phg (r(2) = 0.996-0.999, p<0.001); phg constituted more than 80% of thg in hg-contaminated areas, and could account for 99.6% of the thg close to the mine wastes. (c) 2010 elsevier ltd. all rights reserved.
WOS关键词	MINE-WASTE CALCINES ; SURFACE WATERS ; SPECIATION ; METHYLMERCURY ; AREAS ; SPECTROSCOPY ; SEDIMENTS ; POLLUTION ; DRAINAGE ; ALMADEN
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000278674900003
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2413260
专题	中国科学院大学
通讯作者	Feng, Xinbin
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Norwegian Inst Water Res, N-0349 Oslo, Norway 4.Univ Oslo, Dept Chem, N-0315 Oslo, Norway
推荐引用方式 GB/T 7714	Zhang, Hua,Feng, Xinbin,Larssen, Thorjorn,et al. Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 1-total mercury[J]. Applied geochemistry,2010,25(5):633-641.
APA	Zhang, Hua.,Feng, Xinbin.,Larssen, Thorjorn.,Shang, Lihai.,Vogt, Rolf D..,...&Lin, Yan.(2010).Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 1-total mercury.Applied geochemistry,25(5),633-641.
MLA	Zhang, Hua,et al."Fractionation, distribution and transport of mercury in rivers and tributaries around wanshan hg mining district, guizhou province, southwestern china: part 1-total mercury".Applied geochemistry 25.5(2010):633-641.

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