Heavy metals content (ppm) in TEs

Zn

Cd

Cu

Cr

Standard

3.0

0.003

2.00

0.05

Ashulia

0.6

0.004

0.30

0.10

Savar

1.4

0.005

0.10

0.20

Tongi

0.8

0.005

0.05

0.15