Geographical information system-based groundwater quality index assessment of northern part of Kolkata,India for drinking purpose |
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| Authors: | Suranjana Banerji Deblina Mitra |
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| Institution: | Department of Geography, Presidency University, Kolkata, India |
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| Abstract: | Groundwater is a resource under stress. In both developed and developing countries, it has been found that increasing human influence has led to the contamination of the groundwater resource. To understand the magnitude of this problem, a study was conducted in 58 wards within Northern part of Kolkata, India, where water samples from tube wells were collected and analysed on essential drinking water quality parameters, prescribed by WHO. Using Principal component analysis, and Water quality index mapping, the aforementioned results have been interpreted. This has helped to depict that not only is the groundwater unsuitable for drinking, but that the parametric values have a tendency to increase abruptly within the shortest of ranges, indicating urban pollution as the root cause of contamination. This paper shall thus discuss the spatial change in groundwater quality in northern Kolkata and suggest measures which might be implemented to secure a sustainable future for the city. |
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| Keywords: | Groundwater contamination urban pollution water quality index |
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