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The total concentrations of 12 heavy metals in surface soils (SS, 0–20 cm), middle soils (MS, 30–50 cm) and deep soils (DS, 60–80 cm) from an acid-leaching area, a deserted paddy field and a deserted area of Guiyu were measured. The results showed that the acid-leaching area was heavily contaminated with heavy metals, especially in SS. The mean concentrations of Ni, Cu, Zn, Cd, Sn, Sb and Pb in SS...
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