Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions

	Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions
	Xinbin Feng; Delphine Foucher; Holger Hintelmann; Haiyu Yan; Tianrong He; Guangle Qiu
	2010
发表期刊	Environmental Science & Technology
卷号	44 期号:9 页码:3363-3368
摘要	Mercury (Hg) isotope ratios were determined in two sediment cores collected from two adjacent reservoirs in Guizhou, China, including Hongfeng Reservoir and Baihua Reservoir. Hg isotope compositions were also analyzed in a soil sample collected from the catchment of Hongfeng Reservoir and three cinnabar samples collected from the Wanshan Hg mine. Baihua Reservoir was contaminated with runoff from Guizhou Organic Chemical Plant (GOCP) when metallic Hg was used as a catalyst to produce acetic acid. Hongfeng Reservoir, located upstream of Baihua, receives Hg from runoff and atmospheric deposition. We demonstrated that δ²⁰²Hg values relative to NIST 3133 of sediment in Baihua Reservoir ranging from −0.60 to −1.10‰ were distinctively different from those in Hongfeng Reservoir varying from −1.67 to −2.02‰. While sediments from both Baihua and Hongfeng Reservoirs were characterized by mass dependent variation (MDF), only Hongfeng Reservoir sediments were characterized by mass independent variation (MIF). Moreover, by using a binary mixing model, we demonstrated the major source of Hg in sediment of Hongfeng Reservoir was from runoff due to soil erosion, which was consistent with the conclusion obtained from a previous Hg balance study. This study demonstrates Hg isotope data are valuable tracers for determining Hg contamination sources in sediments.
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/352002/6829
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	Xinbin Feng,Delphine Foucher,Holger Hintelmann,et al. Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions[J]. Environmental Science & Technology,2010,44(9):3363-3368.
APA	Xinbin Feng,Delphine Foucher,Holger Hintelmann,Haiyu Yan,Tianrong He,&Guangle Qiu.(2010).Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions.Environmental Science & Technology,44(9),3363-3368.
MLA	Xinbin Feng,et al."Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions".Environmental Science & Technology 44.9(2010):3363-3368.

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