Metal ion

Concentration in Kales (mg/Kg)

WHO standards (mg/kg)

Zn

0.01538 ± 0.0077

3

Cd

0.00007 ± 0.0000

0.03

Cu

0.00227 ± 0.0005

2

Cr

0.00141 ± 0.0003

2.3

Pb

0.00043 ± 0.0003

0.1

Fe

0.01187 ± 0.0016

18

Mn

0.00467 ± 0.0007

2