Abstract
BCR three-step extraction method was used to evaluate the speciation of lead in red soil, The result showed that the percentage of bound to carbonates, bound to Fe-Mn oxldes speciation, bound to organic matter speciation and residual speciation are 31.39%, 23.75%, 22.53% and 22.26%, respectively. The bioavailability of lead in red soil was evaluated based on BCR speciation, 77.74% of total bioavailability speciation was observed.
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