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Environmental Science. 2014, (11) Core

Quantifying the Influence of Different Matrices on Pb Accumulation in the Soil from Nanjing and Suspended Matter from the Lower of the Yangtze River with Pb Isotopic TechniqueChinese Full Text

WANG Cheng;XIA Xue-qi;ZHANG Yi;LIAO Qi-lin;YANG Zhong-fang;JI Jun-feng;Nanjing Research Institute of Environmental Protection;Key Laboratory of Surficial Geochemistry,Ministry of Education,School of Earth Sciences and Engineering,Nanjing University;School of Earth Sciences and Resources,China University of Geosciences;Wuhu Conch Cement Co. ,Ltd.;Geological Survey of Jiangsu Province;

Abstract: Lead pollution and its geochemical behavior have an influence on ecological environment and human health. It is of significance to study the characteristics and mechanism of Pb accumulation and to quantify the contributions of different environmental matrices to Pb accumulation in soils and river suspended matter in the representative fluvial delta area,such as the lower of the Yangtze River. The results showed that lead was enriched in the urban topsoil in Nanjing and the suspended matter in the lower of the Yangtze River. The urban topsoil and the river suspended matter showed higher206 Pb /207 Pb and lower208 Pb /206 Pb relative to the natural matrices,and this was resulted from the influence of the anthropogenic lead. The relative contribution of separate Pb sources was assessed with the Pb geochemical model,18%-56%（ average 35%） Pb in Nanjing urban soil was derived from the anthropogenic matrices,and anthropogenic Pb contributed 22%-46%（average 32%） of total Pb in the Yangtze River suspended matter.
Keywords：

lead isotopes; the Yangtze River; Nanjing; soil; suspended matter; contamination;

  • DOI：

    10.13227/j.hjkx.2014.11.030

  • Series：

  • Subject：

  • Classification Code：

    X142;X53;X52

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