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  • Title: [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 technique].
    Author: Wang C, Xia XQ, Zhang Y, Liao QL, Yang ZF, Ji JF.
    Journal: Huan Jing Ke Xue; 2014 Nov; 35(11):4251-6. PubMed ID: 25639103.
    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 higher 206Pb/207Pb and lower 208Pb/206Pb 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.
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