Contrasting dissolved organic matter quality in groundwater in Holocene and Pleistocene aquifers and implications for influencing arsenic mobility

• Published in: Applied geochemistry Vol. 77; pp. 194 - 205
• Main Authors: Kulkarni, Harshad V., Mladenov, Natalie, Johannesson, Karen H., Datta, Saugata
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2017
• Subjects: absorbance; aquifers; arsenic; basins; dissolved organic matter; Dissolved organic matter characterization; drinking water; factor analysis; fluorescence; fluorescence emission spectroscopy; Fluorescence spectroscopy; freshness; groundwater; Groundwater arsenic; humification; hydrochemistry; India; Parallel factor analysis (PARAFAC); sediments; surface water; water quality; wells; India; Fluorescence spectroscopy; Dissolved organic matter characterization; Groundwater arsenic; Parallel factor analysis (PARAFAC)

The discontinuous nature of elevated arsenic (As) in drinking water wells of West Bengal and other regions in the Bengal Basin has led to increased interest in the role that sediment-derived organic matter may play in enhancing reductive dissolution and As mobilization. Higher As concentrations have...