[AHW22-P10] The solubility of heavy metals in mine tailings and soils from Kamegai mine, Toyama prefecture in Japan
Keywords:solubility, heavy metals, mining waste, soil
The chemical associations of Cd, Cu, Pb, and Zn in thirty-four soil samples (<63mm) from the Kamegai mine waste site have been investigated by a five- step sequential extraction procedure. Sequential extraction showed that most of the As and Cu was associated with the poorly crystalized iron oxide and residual fractions, while Zn, Cd, and Pb was mainly associated with the exchangeable and carbonate fraction.
The in-field magnetic susceptibility of top soils was clearly correlated with Fe, Zn, Pb and As concentrations.