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  • Title: [Application of Pb stable isotope in source identification of soil pollutants].
    Author: Wu LH, Zhang CB, Zhang HB, Luo YM.
    Journal: Huan Jing Ke Xue; 2009 Jan; 30(1):227-30. PubMed ID: 19353885.
    Abstract:
    Stable isotopes are key importance for tracing the source of heavy metals in soils. 11 surface soil samples were collected in a contaminated site according to geostatistical results, which had a series of concentrations from almost background value of Pb to more than 2 000 microg x g(-1). Pb stable isotope composition of the soil samples was analyzed to imply the sources. The results showed that 206Pb/207Pb, 208Pb/204Pb and 206Pb/204Pb of soil samples were all remarkably correlated linearly with reciprocals of Pb concentration, and 206Pb/204Pb had a significant positive linear correlation with 208Pb/204Pb, which was consistent with binary mixing model. It can be inferred that soil Pb mainly came from two sources, an anthropogenic source and soil parent material.
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