Prediction of arsenic vulnerable zones in the groundwater environment of a rapidly urbanizing setup, Guwahati, India

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dc.contributor.author Singh, Ashwin
dc.contributor.author Patel, Arbind Kumar
dc.contributor.author Deka, Jyoti Prakash
dc.contributor.author Das, Aparna
dc.contributor.author Kumar, Abhay
dc.contributor.author Kumar, Manish
dc.date.accessioned 2019-12-18T12:44:35Z
dc.date.available 2019-12-18T12:44:35Z
dc.date.issued 2019-11
dc.identifier.citation Singh, Ashwin; Patel, Arbind Kumar; Deka, Jyoti Prakash; Das, Aparna; Kumar, Abhay and Kumar, Manish, “Prediction of arsenic vulnerable zones in the groundwater environment of a rapidly urbanizing setup, Guwahati, India”, Geochemistry, DOI: 10.1016/j.chemer.2019.125590, vol. 80, no. 4, Nov. 2019. en_US
dc.identifier.issn 0009-2819
dc.identifier.uri https://doi.org/10.1016/j.chemer.2019.125590
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/5035
dc.description.abstract The present study, through a multi model assessment approach emphasizes the relevance of prior urban settlement planning with respect to the changing land use pattern. A coupled approach integrating satellite data products of Land Use and Land Cover (LULC) change along with chemical evaluation of As toxicity were modelled to evaluate the groundwater vulnerability. Change detection analysis was incorporated using the satellite images of 2013 and 2016 which shows 10 % increase in the buildings as compared to the total area of the study in given period. The LULC class that has been most compromised in this expansion and got reduced were the vegetation (?6 %) and the barren areas (?4 %) and the total surface water sources (0.5 %), all contributing in increased urban sprawl. As per the origin of As contamination in the area it seems that high sediment deposition along the braided Brahmaputra River stretch leads to As contamination which was associated with Fe-(oxy)-hydroxide dissolution. The vulnerability assessment using Artificial Neural Network technique in this region shows that As is present relatively in lesser concentration in the east direction. The continuous expansion of the urban habitation towards the greater As concentration zone will further make the situation critical for the people dependent on groundwater. The study suggests that prior settlement planning must be carried out in accordance to the presence of any toxic constituent in drinking water source to avoid future crisis for potable water.
dc.description.statementofresponsibility by Ashwin Singh, Arbind Kumar Patel, Jyoti Prakash Deka, Aparna Das, Abhay Kumar and ManishKumar
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.subject Urbanisation en_US
dc.subject Groundwater en_US
dc.subject Vulnerability en_US
dc.subject Artificial Neural Network (ANN) en_US
dc.subject LULC en_US
dc.subject Smart city en_US
dc.subject Guwahati en_US
dc.title Prediction of arsenic vulnerable zones in the groundwater environment of a rapidly urbanizing setup, Guwahati, India en_US
dc.type Article en_US
dc.relation.journal Geochemistry


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