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Silica-Volatile Interaction and the Geological Cause of the Xuan Wei Lung Cancer Epidemic

机译：宣威肺癌流行的硅石-挥发性相互作用和地质原因

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摘要

Parts of Xuan Wei County, Yunnan Province, China have the highest known lung cancer mortality in nonsmoking women. This high mortality displays a clear spatial relationship to the mines producing coal from the uppermost Permian. Geochemical, petrographic, and grainsize analyses were undertaken on a set of coal samples from Xuan Wei. Results demonstrate that the single geochemical property that makes this coal unusual is its high concentration of quartz (13.5 wt %) of which 35-55% occurs as <10 μm grains. We propose the potential for silica-volatile interaction (PSVI) as a new method for assessing the combined influence of silica and volatile organic matter and use this as a basis for re-evaluating existing ecological data. Published lung cancer mortality values are more strongly correlated with PSVI values for Xuan Wei coal than with volatiles or silica alone and the PSVI values measured are distinct from those of other coals. Finally we propose that the localization of this epidemic to Xuan Wei results from enhanced weathering of the local Emeishan basalts as a consequence of geochemical perturbations at the Permo-Triassic Boundary.
机译：中国云南省宣威县部分地区的非吸烟女性肺癌死亡率最高。如此高的死亡率与从最上层的二叠纪生煤的煤矿显示出明显的空间关系。对宣威的一组煤样品进行了地球化学，岩石学和粒度分析。结果表明，使这种煤与众不同的唯一地球化学特性是其高浓度的石英（13.5 wt％），其中35-55％的石英以<10μm的晶粒出现。我们提出了二氧化硅-挥发性相互作用（PSVI）的潜力，作为评估二氧化硅和挥发性有机物的综合影响的一种新方法，并将其用作重新评估现有生态数据的基础。公布的肺癌死亡率值与宣威煤的PSVI值相比，与单独的挥发物或二氧化硅的相关性更高，并且测得的PSVI值与其他煤的PSVI值不同。最后，我们认为，这种流行病在宣威的定位是由于二叠纪-三叠纪边界的地球化学扰动导致当地峨眉山玄武岩风化作用增强。

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  • 来源
    《Environmental Science & Technology》 |2009年第23期|9016-9021|共6页
  • 作者

    DAVID J. LARGE; SHONA KELLY; BARUCH SPIRO; LINWEI TIAN; LONGYI SHAO; ROBERT FINKELMAN; MINGQUAN ZHANG; CHRIS SOMERFIELD; STEVE PLINT; YASMIN ALI; YIPING ZHOU;

  • 作者单位

    Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, U.K.;

    Division of Epidemiology and Public Health, University of Nottingham, Nottingham, NG7 2RD, U.K.;

    Department of Mineralogy, Natural History Museum, Cromwell Road London, SW7 5DB, U.K.;

    School of Public Health, Chinese University of Hong Kong, Hong Kong SAR, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;

    The University of Texas at Dallas, F021, Richardson, Texas 75080-3021;

    Yunnan Institute of Coal Geology Prospection, Kunming, 650218, China;

    Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, U.K.;

    Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, U.K.;

    Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, U.K.;

    Yunnan Institute of Coal Geology Prospection, Kunming, 650218, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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