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Source and Nature of Inhaled Atmospheric Dust from Trace Element Analyses of Human Bronchial Fluids

机译:人体支气管液微量元素分析吸入大气粉尘的来源和性质

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摘要

ABSTRACT: Rapid volcanic eruptions quickly ejecting large amounts of dust provoke the accumulation of heavy metals in people living in surrounding areas. Analyses of bronchoalveolar lavage samples (BAL) collected from people exposed to the paroxysmal 2001 Etna eruption revealed a strong enrichment of many toxic heavy metals. Comparing the BAL to the dust composition of southeastern Sicily, we found that only V, Cr, Mn, Fe, Co, and U enrichment could be related to the volcanic event, whereas Ni, Cu, Cd, and Pb contents come from the dissolution of particles of anthropogenic origin. Furthermore, the nature of these inhaled anthropogenic particles was revealed by anomalous La and partially Ce concentra tions in BAL that were consistent with a mixture of road dust and petroleum refinery emissions. Our results indicate that trace element distribution in BAL is a suitable tracer of human exposure to different sources of inhaled atmospheric particulates, allowing investigations into the origin of source materials inhaled by people subjected to atmospheric fallout.
机译:摘要:快速的火山喷发迅速喷出大量粉尘,促使周围地区的人们聚集了重金属。从2001年发作性Etna爆发的人中收集的支气管肺泡灌洗样品(BAL)的分析显示,许多有毒重金属含量很高。通过将BAL与西西里东南部的粉尘成分进行比较,我们发现,只有V,Cr,Mn,Fe,Co和U富集与火山事件有关,而Ni,Cu,Cd和Pb的含量则与溶蚀有关。人为来源的颗粒。此外,BAL中的La和部分Ce浓度异常揭示了这些吸入的人为颗粒的性质,这与道路扬尘和炼油厂排放物的混合相一致。我们的结果表明,BAL中的痕量元素分布是人类暴露于不同吸入大气颗粒物源的合适示踪剂,从而可以调查遭受大气尘埃污染的人吸入的源物质的来源。

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  • 来源
    《Environmental Science & Technology》 |2011年第15期|p.6262-6267|共6页
  • 作者单位

    Dipartimento DiSTeM, Universita di Palermo, Via Archirafi, 36 90123 • Palermo, Italy,I.A.M.C.CNR -UOS di Capo Granitola, Via del mare, 3-91026 Torretta Granitola, Campobello di Mazara (TP), Italy;

    Institut de Genie de l'Environnement Ecodeveloppement and Departement Sciences de la Terre, UMR 5125,Universite Claude Bernard Lyon 1, 2 rue R. Dubois, Bat GEODE 69622 Villeurbanne Cedex, France;

    Dipartimento DiSTeM, Universita di Palermo, Via Archirafi, 36 90123 • Palermo, Italy,Institut de Genie de l'Environnement Ecodeveloppement and Departement Sciences de la Terre, UMR 5125,Universite Claude Bernard Lyon 1, 2 rue R. Dubois, Bat GEODE 69622 Villeurbanne Cedex, France;

    Dipartimento DiSTeM, Universita di Palermo, Via Archirafi, 36 90123 • Palermo, Italy;

    Deutsches GeoForschungsZentrum, Telegrafenberg, Potsdam 14473, Germany;

    I.A.M.C.CNR -UOS di Capo Granitola, Via del mare, 3-91026 Torretta Granitola, Campobello di Mazara (TP), Italy;

    Dipartimento di Scienze Geologiche, Universita di Catania, Corso Italia, 57 - 95129 Catania, Italy;

    Dipartimento DiSTeM, Universita di Palermo, Via Archirafi, 36 90123 • Palermo, Italy;

    Dipartimento Biomedico di Medicina Interna e Specialistica, sezione di Pneumologia (DI.BI.M.I.S.),Universita degli Studi di Palermo - Via Trabucco n° 180, 90146 Palermo, Italy;

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