Arsenic in hydrological processes: sources, speciation, bioavailability and management [Editorial]

This Special Issue of Journal of Hydrology, 'Arsenic in hydrological processes—sources, speciation, bioavailability and management' includes scientific contributions which offer 'state of the art' knowledge about the sources and dynamics of As in hydrological processes, mechanisms of As transformation in the environment and in biota, the bioavailability of As, interactions between the biotic and abiotic components of the ecosystem, and research on innovative strategies for environmental management of As. The results reported here will contribute meaningfully to the prevention or reduction of exposure to As and its toxic effects on millions of people throughout the world