Sl. No.

Sample reference

Cd

Cu

Fe

Ni

Pb

Zn

1

Urban wastewater (mg/L)

BDL

0.07

1.58

0.73

0.03

0.29

2

Biosolids (mg/Kg)

BDL

0.05

37.1

0.72

0.2

1.48

3

Soil (mg/Kg)

BDL

244.7

1583.4

399.2

21.5

342.6