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Arsenic Heterogeneity In Aquifer Sediments From West Bengal, India, Emily Eastridge
Arsenic Heterogeneity In Aquifer Sediments From West Bengal, India, Emily Eastridge
Theses and Dissertations--Earth and Environmental Sciences
Multiple studies in the Bengal basin have shown that elevated As in groundwater coincides with reduced, relatively dark sediments of Himalayan provenance. In West Bengal state (India), As concentrations > 10 μg/L tend to occur east of the River Bhagirathi-Hoogly, the main distributary of the Ganges. Associations among sediment chemistry and mineralogy for four cores from either side of the Bhagirathi-Hoogly (cores 1 and 2 to the east, 3 and 4 to the west) in Murshidabad district were investigated. Ten sediment samples were collected from each boring at various depths to a maximum of 38 to 43 m. Sediment chemistry was …