The accumulation of high concentrations of metals, such as Pb, Cd, Ni,
Zn and Cu, is a concern because these metals can lead to decreased crop
production. Heavy metal accumulation in agricultural soils may also be
an important route to trophic chain contamination, and it deserves special
attention due to the risk of bioaccumulation. Furthermore, there is also a
risk of groundwater and surface water body contamination