of water table fluctuations were studied to determine the likely sources and processes
responsible for releasing As into groundwater. Samples were collected from different
geological settings with varying groundwater As concentrations during dry (December 2005)
and wet (September 2006) seasons at Sonargaon, Bangladesh. Stratigraphic sequences of
the studied sediments showed three distinct lithofacies, viz. clayey-silt, silty-clay, and silty …