Fluoride contamination of groundwater and its seasonal variability in parts of Purulia district, West Bengal, India

Farooq, Syed Hilal and Prusty, Pintu and Singh, Raj Kumar and Sen, Subhajit and Chandrasekharam, Dornadula (2018) Fluoride contamination of groundwater and its seasonal variability in parts of Purulia district, West Bengal, India. Arabian Journal of Geosciences, 11 (22 - Article 709). ISSN 1866-7511

Abstract

The contamination of aquifers by fluoride and arsenic is a major cause of concern in several parts of India. A study has thus been conducted to evaluate the extent and severity of fluoride contamination and also its seasonal variability. Two blocks (Purulia-1 and Purulia-2) were considered for this purpose. Twenty groundwater samples (in each season) were collected from tube wells during the pre-monsoon and post-monsoon seasons. In addition to fluoride, groundwater samples were also analyzed for major cations, anions, and other trace elements. The concentration of fluoride shows significant seasonal variation and ranges between 0.94–2.52 and 0.25–1.43 mg/l during the pre-monsoon and post-monsoon seasons, respectively. In pre-monsoon season, more than 40% of the water samples show fluoride concentrations higher than the WHO limit. However, during the post-monsoon season, none of the groundwater sample shows fluoride concentrations higher than the WHO limit. Lesser concentration during the post-monsoon season is attributed to the dilution effect by the percolating rainwater, which has also been reflected in the form of a decrease in concentrations of other elements. The petrographic studies of the rock samples collected from the study area show that the rocks are mainly composed of plagioclase, orthoclase, and quartz with abundant biotite. The weathering and dissolution of biotite plays an important role in controlling the fluoride concentrations in the groundwater of the study area. © 2018, Saudi Society for Geosciences.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 01 Mar 2019 01:45
Last Modified: 05 Mar 2019 01:11
Uncontrolled Keywords: fluoride contamination; groundwater contamination; seasonal variability
Fields of Research : 05 Environmental Sciences > 0502 Environmental Science and Management > 050204 Environmental Impact Assessment
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040603 Hydrogeology
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Identification Number or DOI: 10.1007/s12517-018-4062-9
URI: http://eprints.usq.edu.au/id/eprint/35970

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