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首页> 外文期刊>Environmental Science & Technology >An 800-Year Record of Atmospheric As, Mo, Sn, and Sb in Central Asia in High-Altitude Ice Cores from Mt. Qomolangma (Everest), Himalayas
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An 800-Year Record of Atmospheric As, Mo, Sn, and Sb in Central Asia in High-Altitude Ice Cores from Mt. Qomolangma (Everest), Himalayas

机译：来自中亚山高海拔冰芯的中亚大气砷，钼，锡和锑的800年记录。珠穆朗玛峰（珠穆朗玛峰），喜马拉雅山

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摘要

As, Mo, Sn, and Sb have been determined by inductively coupled plasma sector field mass spectrometry (ICP-SFMS) in 143 depth intervals of high-altitude ice cores from Mt Everest, covering an 800-year time period from 1205 to 2002 AD. The results clearly demonstrate the long-term historical record of atmospheric transport and deposition of As, Mo, Sn, and Sb that has prevailed at high altitudes in the central Himalayas. Natural contributions, mainly from mineral dust, have dominated the atmospheric cycles of As, Mo, Sn, and to some extent Sb during the 700 years prior to the 20th century. Compared to those of the pre-1900 period, pronounced increasesrnof both concentrations and crustal enrichment factors are observed since the 1970s, with the highest increase factor for Sn and the lowest for As, Such increases are attributed to anthropogenic emissions of these elements, largely from stationary fossil fuel combustion and nonferrous metals production, particularly in India. Our central Himalayan ice core record provides an explicit recognition of rising atmospheric As, Mo, Sn, and Sb pollution in response to rapid economic growth in central Asia.
机译：砷，钼，锡和锑已通过电感耦合等离子体扇区质谱法（ICP-SFMS）在珠穆朗玛峰的高空冰芯的143个深度间隔中确定，涵盖了从1205年到2002年的800年时间。结果清楚地表明了在喜马拉雅山中部高海拔地区盛行的大气中As，Mo，Sn和Sb迁移和沉积的长期历史记录。在20世纪之前的700年中，主要来自矿物粉尘的自然贡献主导了砷，钼，锡和某种程度上锑的大气循环。与1900年前期相比，自1970年代以来，观测到浓度和地壳富集因子均显着增加，其中Sn的增加因子最高，As的最低，这种增加主要归因于这些元素的人为排放。固定化石燃料燃烧和有色金属生产，特别是在印度。我们在喜马拉雅山脉中部的冰芯记录清楚地表明，随着中亚经济的快速增长，大气中As，Mo，Sn和Sb污染的增加。

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  • 来源
    《Environmental Science & Technology》 |2009年第21期|8060-8065|共6页
  • 作者

    SUNGMIN HONG; KHANGHYUN LEE; SHUGUI HOU; SOON DO HUR; J1AWEN REN; LAURIE I. BURN; KEVIN J. R. ROSMAN; CARLO BARBANTE; CLAUDE F. BOUTRON;

  • 作者单位

    Korea Polar Research Institute, Songdo Techno Park, 7-50, Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea;

    Korea Polar Research Institute, Songdo Techno Park, 7-50, Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea University of Science & Technology, 113 Gwahangno, Yuseong-gu, Daejeon, Korea;

    State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China;

    Korea Polar Research Institute, Songdo Techno Park, 7-50, Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea;

    State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China;

    Department of Imaging and Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Aiistralia;

    Department of Imaging and Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Aiistralia;

    Department of Environmental Sciences, University of Venice, Ca' Foscari, 30123 Venice, Italy Centre for Studies on Environmental Chemistry and Technology-CNR, University of Venice, Ca' Foscari, 30123 Venice, Italy;

    Laboratoire de Glaciologie et Geophysique de lEnvironnement, UMR CNRS 5183, B.P. 96, 38402, Saint Martin d'Heres Cedex, France Observaioire des Sciences de l'Univers et Unite de Formation et de Recherche de Physique, Universite Joseph Fourier de Grenoble (Institut Universitaire de France), B.P. 68, 38041 Grenoble, France;

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