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Diffuse emission and transport of gaseous elemental mercury (GEM) in the Mapamyum geothermal system, Western Tibet (China)

文献类型：期刊论文

作者Sun, Yutao2; Guo, Zhengfu1,3,6; Du, Jianguo4,5; Zhao, Wenbin1,3,6
刊名JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
出版日期2020-05-15
卷号397页码:12
关键词Mapamyum geothermal system Gaseous elemental mercury (GEM) HYSPLIT Dispersion Tibet
ISSN号0377-0273
DOI10.1016/j.jvolgeores.2020.106825
英文摘要Mercury (Hg) is a widely spread pollutant, owing to its high mobility in the nature. The rising input of Hg into the atmosphere has resulted in enhanced Hg pollution in both terrestrial and aquatic ecosystems. The Tibetan plateau, which is known as the roof of the world, is considered as a Hg-sensitive ecosystem. The Himalayan-Tibetan geothermal belt, which is formed due to the collision between India and Eurasia, is an important potential source of Hg to the atmosphere. However, previous studies to the emission and transport of geological Hg in the Tibetan Plateau are still rare. Understanding emission and transport of Hg in the Tibetan Plateau can provide important constraints on global Hg budget and its pollution transport. Diffuse emission and transport of gaseous elemental mercury (GEM or Hg-0) in the Mapamyum geothermal system (MGF) of western Tibet was investigated and simulated by the closed-chamber method and the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) dispersion model. The estimated annual output of GEM in the MGF, calculated over an area of 41,615 m(2), was in the order of 6.1 x 10(-4) ton. He-C isotope ratios of the geothermal samples were all within the range of typical crustal domain. Combing with the hydrothermal analysis, it could deduce the Hg-0 in the MGF might derive from both deep lithosphere and the upper crust. The GEM diffused from the source region was mainly dispersed to the NW direction. The maximum concentration of GEM is mainly distributed around the MGF, which is also the region with the largest deposition rate. The simulated results of the HYSPLIT dispersion model suggest that the GEM emitted from the MGF would not significantly enhance the atmospheric Hg concentration, whereas the deposition and accumulation of GEM around the source region is not negligible. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词ATMOSPHERIC MERCURY ; CO2 FLUX ; HELIUM ISOTOPE ; SOUTHERN TIBET ; VOLCANIC FIELD ; REMOTE SITE ; SOIL-GAS ; DISPERSION ; LAKE ; HYSPLIT
资助项目Second Tibetan Plateau Scientific Expedition and Research program (STEP)[2019QZKK0702] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences[QYZDY-SSW-DQC030] ; National Natural Science Foundation of China[41772355] ; National Natural Science Foundation of China[41902312] ; National Natural Science Foundation of China[41902308]
WOS研究方向Geology
语种英语
WOS记录号WOS:000536176600007
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/96681]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Guo, Zhengfu
作者单位1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Heibei GEO Univ, Sch Nat Resources, Shijiazhuang 050031, Hebei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Earthquake Adm, Key Lab Earthquake Predict, Inst Earthquake Forecasting, Beijing 100036, Peoples R China
5.United Lab High Pressure Phys & Earthquake Sci, Beijing 100036, Peoples R China
6.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Yutao,Guo, Zhengfu,Du, Jianguo,et al. Diffuse emission and transport of gaseous elemental mercury (GEM) in the Mapamyum geothermal system, Western Tibet (China)[J]. JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,2020,397:12.
APA Sun, Yutao,Guo, Zhengfu,Du, Jianguo,&Zhao, Wenbin.(2020).Diffuse emission and transport of gaseous elemental mercury (GEM) in the Mapamyum geothermal system, Western Tibet (China).JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,397,12.
MLA Sun, Yutao,et al."Diffuse emission and transport of gaseous elemental mercury (GEM) in the Mapamyum geothermal system, Western Tibet (China)".JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 397(2020):12.

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来源：地质与地球物理研究所

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