ABSTRACT
Sources of Heavy Metal(loid)s in Soil Environment ..........................................3 Geogenic ..............................................................................................................3 Anthropogenic ....................................................................................................4
Reactions of Metal(loid)s in Soils ..........................................................................4 Sorption/Desorption Process ...........................................................................5 Precipitation/Dissolution .................................................................................6 Oxidation/Reduction ........................................................................................6 Methylation/Demethylation ............................................................................8
Reactions of Phosphate Compounds in Soils ......................................................8 Water-Soluble Compounds ...............................................................................9 Water-Insoluble Compounds ............................................................................9
Mechanisms for (Im)mobilization of Heavy Metal(loid)s by Phosphate Compounds ........................................................................................ 12
