The leaves of spinach, cabbage, cauliflower, radish and coriander contained higher concentrations of Cu (0.923 mg kg-1),
Cd (0.073 mg kg-1), Cr (0.546 mg kg-1), Zn (1.893 mg kg-1) and Pb (2.652 mg kg-1) as compared to other parts of each vegetable (Farooq et al., 2008).