Print Email Facebook Twitter Estimating arsenic concentrations in Bihar (India), a geostatistical approach using DEM data Title Estimating arsenic concentrations in Bihar (India), a geostatistical approach using DEM data Author Pennekamp, M.F. Contributor Weltje, G.J. (mentor) Bloemsma, M.R. (mentor) Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Programme Applied Geology Date 2014-08-29 Abstract Bihar is a densely populated area located in the Middle Ganga Plain (MGP) in India. The Ganges' sinuous nature in the MGP created a vast amount of point bar structures within the floodplain. In 2003 it was discovered that high arsenic concentrations are present in the shallow groundwater aquifers, especially in the elevated point bars. According to recent research the high contents within the point bars are caused by poor cleansing by the ground water flux. Based on the geological setting of the MGP a relation is found between the surface elevation and the arsenic contamination. An Arsenic Risk Assessment Model (ARAM) is developed and to find the high risk regions. Free digital elevation data from the United States Geological Survey (USGS) are used to locate the high risk areas. The free data proved to be inadequate for this task, hence a semi-automated theoretical model has been developed. With high quality elevation data, such as LIDAR, this model could give a quick indication of the regions with a potential high risk of arsenic contamination. Subject Arsenic ContaminationMeandering river systemMiddle Ganga Plain To reference this document use: http://resolver.tudelft.nl/uuid:c498113b-76a9-4377-9cc2-d4952a819d11 Coordinates 25.666667, 84.633333 Part of collection Student theses Document type bachelor thesis Rights (c) 2014 Pennekamp, M.F. Files PDF Bsc_scriptie_Frank_Pennekamp.pdf 7.25 MB Close viewer /islandora/object/uuid:c498113b-76a9-4377-9cc2-d4952a819d11/datastream/OBJ/view