Arsenic in the geosphere - a review

An attempt is made to quantify the global element cycle for arsenic? based on an extensive literature research with special emphasis on the most recen t works. Reservoirs in and fluxes within and through lithosphere, atmospher e, pedosphere, hydrosphere, biosphere, and anthrosposphere are being presen ted. Crucial knowledge gaps are addressed and some simple model calculation s partially question currently held ideas about sources, pathways, and the fate of arsenic in the environment. (C) 2000 Elsevier Science B.V. All righ ts reserved.