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Tracing Mercury Contamination Sources in Sediments Using Mercury Isotope Compositions
Xinbin Feng; Delphine Foucher; Holger Hintelmann; Haiyu Yan; Tianrong He; Guangle Qiu
2010
Source PublicationEnvironmental Science & Technology
Volume44Issue:9Pages:3363-3368
AbstractMercury (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.
Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6829
Collection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
Recommended Citation
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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