Use of Hydrophilic Insoluble Polymers in the Restoration of Metal-Contaminated Soils

Table 2

Extractable levels of metals in contaminated soils.

Metals contaminating the soil	Extracting solution	Level of metals (% of control)	Reference
Cu	Water	11	[39]
Pb	0.01 M CaCl2	63	[22]
Pb, Cu, and Zn	Water	64, 50, and 50	[40]
Cd	0.01 M CaCl2	57	Unpublished results