26(4):516–525īiswas A, Neidhardt H, Kundu AK, Halder D, Chatterjee D, Berner Z, Bhattacharya P (2014) Spatial, vertical and temporal variation of arsenic in shallow aquifers of the Bengal Basin: controlling geochemical processes. J Hazard Mater 262:915–923īiswas A, Majumder S, Neidhardt H, Halder D, Bhowmick S, Mukherjee-Goswami A, Kundu A, Saha D, Berner Z, Chatterjee D (2011) Groundwater chemistry and redox processes: Depth dependent arsenic release mechanism. J Water Resourc Dev 13:79–92īhowmick S, Nath B, Halder D, Biswas A, Majumder S, Mondal P, Chakraborty S, Nriagu J, Bhattacharya P, Iglesias M, Roman-Ross G, Guha Majumdar DN, Bundschuh J, Chatterjee D (2013) Arsenic mobilization in the aquifers of three physiographic settings of West Bengal, India: understanding geogenic and anthropogenic influences. British Geological Survey, Keyworthīhattacharya P, Chatterjee D, Jacks G (1997) Occurrence of arsenic-contaminated groundwater in alluvial aquifers from delta plains, Eastern India: Options for safe drinking water supply. In: Kinniburgh DG, Smedley PL (eds) British Geological Survey (Technical Report, WC/00/19. 249:91–112īGS and DPHE (2001) Arsenic contamination of groundwater in Bangladesh. īerg M, Trang PTK, Stengel C, Buschmann J, Viet PH, Dan NV, Giger W, Stuben D (2008) Hydrological and sedimentary controls leading to arsenic contamination of groundwater in the Hanoi area, Vietnam: the impact of iron-arsenic ratios, peat, river bank deposits and excessive groundwater abstraction. īerg M, Tran HC, Nguyen TC, Pham HV, Schertenleib R, Giger W (2001) Arsenic contamination of ground and drinking water in Vietnam: a human health threat. Publ., TRITA-AMI Report, vol 3084, pp 97–108Īllen M (2017) The sage encyclopedia of communication research methods, vol 1-4. In: Groundwater arsenic contamination in the Bengal Delta Plain of Bangladesh. 19:181–200Īhmed KM, Imam MB, Akhter SH, Hasan MA, Khan AA (2001) Sedimentology and mineralogy of arsenic-contaminated aquifers in the Bengal Delta of Bangladesh. Environ Geology 52(3):489–501Īhmed KM, Bhattacharya P, Hasan MA, Akhter SH, Alam SMM, Bhuyian MAH (2004) Arsenic contamination in groundwater of alluvial aquifers in Bangladesh: an overview. The present study indicates that the geomorphic features play a significant role in the mobilization of arsenic in shallow groundwater by supplying accumulated organic matter.Īcharyya SK, Shah BA (2007) Arsenic-contaminated groundwater from parts of Damodar fan-delta and west of Bhagirathi River, West Bengal, India: influence of fluvial geomorphology and Quaternary morphostratigraphy. It has also been observed that arsenic contamination along the different geomorphic features follows the trend of abandoned channels > back swamps > other water bodies > swamps > cut-off meanders > meander scars > ponds > oxbow lakes > channel bar > point bars >channel islands. Arsenic contamination levels are varying in different fluvial plains of the study area following the trend of Older Deltaic Plain (ODP) > Older Flood Plain (OFP) > Active Flood Plain (AFP). The moderate to highly contaminated zones are mostly consolidated to the central and southeastern part of the study area. The frequency distribution of geomorphic features is found similar to the arsenic distribution pattern. The study shows that the occurrence of geomorphic features and their distribution have a vital role in the heterogeneous distribution pattern of arsenic in shallow groundwater. GIS techniques were frequently used to identify the geomorphic features and to correlate with arsenic distribution patterns. The study was conducted to explore the influence of geomorphic features scattered throughout the area on the occurrence and distribution of arsenic in shallow groundwater.
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