Toxic Metal

Rainy Season Conc. (mg/L)

Dry Season Conc. (mg/L)

Mean Conc. (mg/L)

WHO/NSDWQ Limit (mg/L)

As

0.0001

0.0008

0.00045

0.01

Cd

−0.0021

0

−0.00105

0.003

Cr

−0.4918

0

−0.2459

0.05

Cu

0.0014

0

0.0007

2.0

Hg

−0.0002

−0.875

−0.4376

0.006

Ni

0.0282

0

0.0141

0.07

Pb

0.1986

0

0.0993

0.01

Zn

0.0011

0.02

0.01055

2.0