1. Nonlinear behavior of heavy metals in soils : mobility and bioavailability / H. Magdi Selim -- 2. Nonequilibrium transport of heavy metals in soils : physical and chemical processes / Hua Zhang -- 3. Chemical equilibrium and reaction modeling of arsenic and selenium in soils / Sabine Goldberg -- 4. Heavy metal and selenium distribution and bioavailability in contaminated sites : a tool for phytoremediation / Beatrice Pezzarossa, F. Gorini, and G. Petruzzelli -- 5. Colloid-associated transport and metal speciation at reclaimed mine sites following biosolid application / A.D. Karathanasis and J.O. Miller -- 6. Trace element biogeochemistry in the rhizosphere / Walter W. Wenzel. [et al.] -- 7. Heavy metals in agricultural watersheds : nonpoint source contamination / Moustafa A. Elrashidi -- 8. Heavy metals transformation in wetlands / R.D. DeLaune and Dong-Cheol Seo -- 9. Factors controlling the dynamics of trace metals in frequently flooded soils / Jorg Rinklebe and Gijs Du Laing -- 10. Heavy metals forms in biosolids, soils, and biosolid-amended soils / Christos D. Tsadilas.