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pulation of patients.The heavy metal pollution level in soils is heavily affected by the soil particle size distribution. However, the heavy metal loss during particle size extraction and the effect of calcite on the heavy metals removal in terms of the particle size are unclear. In this study, the distribution of heavy metals (Cu, Cd, Cr, Co, Ni, Zn, Pb, U, and V) was determined in five particle fractions ( 2, 2-0.25, 0.25-0.02, 0.02-0.002, and Cr6+, while the removal rate of Pb (93.13%) is much higher than that of Cu (24.56%) and