Cd . 3.50 mg/kg Hg .2.01 mg/kg Pb. 286 mg/kg Co . 5.61 mg/kg Mn.156 mg/kg Zn . 2122 mg/kg Cu . 696 mg/kg Ni .247 mg/kgIndicative value for: CrAqua Regia soluble contentCertified valuesCr . 307 mg/kg Ni .251 mg/kg Zn . 2137 mg/kgCu . 707 mg/kg Pb .282 mg/k