Polluted dust derived from long-range transport as a major end memberof urban aerosols and its implication of non-point pollution innorthern China
Yan,Y[1,2]; Sun,YB[1,3]; Weiss,D[4,5]; Liang,LJ[6]; Chen,HY[7]
2015
发表期刊Science of the Total Environment
卷号506-507页码:538-545
文章类型期刊论文
摘要The contribution of polluted dust transported from local and distal sources remains poorly constrained due to their similar geophysical and geochemical properties. We sampled aerosols in three cities in northern China (Xi'an, Beijing, Xifeng) during the spring of 2009 to determine dust flux, magnetic susceptibility and elemental concentrations. Combining dust fluxes with wind speed and regional visibility records enabled to differentiate between dust transported from long range and derived from local sources, while the combination of magnetic susceptibility and enrichment factors (EF) of heavy metals (Pb, Zn) allowed to distinguish natural aerosols from polluted ones. Our results indicate that polluted dust from long-range transport became a major end member of urban dust aerosols. Human settlements as its potential sources were confirmed by a pollutant enriched regional dust event originating from populated areas to the south as inferred by back trajectory modeling, implying their non-point source nature of dust pollution.
关键词Polluted dust from long-range transport Urban dust aerosols Non-point dust pollution Northern China
DOI10.1016/j.scitotenv.2014.11.071
收录类别SCI
语种英语
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9612
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China;
2.University of Chinese Academy of Sciences, Beijing, China;
3.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an 710049, China;
4.Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK;
5.School of Earth Science, Stanford University, Panama Mall, CA 94304, USA;
6.Institute of Geology, China Earthquake Administration, Beijing, China;
7.The Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, China
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Yan,Y[1,2],Sun,YB[1,3],Weiss,D[4,5],et al. Polluted dust derived from long-range transport as a major end memberof urban aerosols and its implication of non-point pollution innorthern China[J]. Science of the Total Environment,2015,506-507:538-545.
APA Yan,Y[1,2],Sun,YB[1,3],Weiss,D[4,5],Liang,LJ[6],&Chen,HY[7].(2015).Polluted dust derived from long-range transport as a major end memberof urban aerosols and its implication of non-point pollution innorthern China.Science of the Total Environment,506-507,538-545.
MLA Yan,Y[1,2],et al."Polluted dust derived from long-range transport as a major end memberof urban aerosols and its implication of non-point pollution innorthern China".Science of the Total Environment 506-507(2015):538-545.
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