Sample

Concentration in ppm

Hg

Pb

As

Cd

CS1

2.83 ± 0.36

2.40 ± 0.65

ND

ND

CS2

4.02

2.44 ± 0.1

ND

ND

CS3

5.88

2.53 ± 0.49

ND

ND

CS4

2.24

1.84 ± 0.36

ND

ND