Table 5: Metal contents of landfill leachate.

Landfills

Fe (mg/l)

As (mg/l)

Cd (mg/l)

Pb (mg/l)

With (mg/l)

Hg (mg/l)

Zn (mg/l)

Akouédo

-

-

< 0.02

< 0.2

0.09

-

0.39

Aba-Eku

0.0123

0.0073

0.007

0.12

0.4778

0.0008

0.9881

Olushosun

2.43

0.3

0.19

0.4

11.3

0.2

-

Niamey 2000

9.26

-

0.19

-

2.3

-

8.75

US EPA

0.3

0.01

0.05

0.015

1.3

-

-