Sl. No.

Sample reference

Cd

Cu

Fe

Ni

Pb

Zn

1

Urban wastewater (mg/L)

BDL

0.09

0.94

0.33

0.04

0.52

2

Biosolids (mg/Kg)

BDL

0.07

19.1

0.64

0.3

0.70

3

Soil (mg/Kg)

BDL

170.0

1330.9

138.3

16.4

287.6