Adsorbent

mg Pb/g adsorbent

Hannon

76.9 ± 2.3

Mikawer

52.7 ± 1.6

Aritain

42.1 ± 1.3

Porcelanite

58.2 ± 1.6

Yellow sand

29.7 ± 0.9

Red sand

11.0 ± 0.4

White sand

8.5 ± 0.3

Kaolinite

7.2 ± 0.2

Silica

3.3 ± 0.1

Alumina

1.3 ± 0.1