Toxic Metal

Rainy Season Conc. (mg/L)

Dry Season Conc. (mg/L)

Mean Conc. (mg/L)

Mean Conc. (mg/kg)

WHO Limit (mg/kg)

As

0.0001

0.00013

0.000115

0.00571

0.26

Cd

−0.0014

0

−0.0007

−0.03476

0.2

Cr

−0.1875

0.02

−0.08375

−4.15839

0.5

Cu

−0.0004

0.0007

0.00015

0.007448

0.2

Hg

0.0001

−0.255

−0.12745

−6.3282

0.6

Ni

0.0206

0.01

0.0153

0.759682

0.5

Pb

0.0815

0.07

0.07575

3.761172

1.0

Zn

0.0308

0.11555

0.073175

3.633317

50