Selenite mobility in soils: Implication of chemical and microbiological processes
L. FEVRIER AND A. MARTIN-GARIN
Geochim. Cosmochim. Acta, 68 (11A) : 521 (suppl1)
Understanding the biogeochemical behaviour of selenium in the biosphere is of major concern in ecotoxicology  but also in radioecology due to its presence as a long-lived radionuclide (79Se) in the nuclear wastes. In moderately oxidizing conditions like surface soils, selenium exists as selenite (Se(IV)) which can react with mineral particles  but also with microorganisms . This study investigated the role of abiotic and biotic processes in the control of Se(IV) mobility in soils.