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Fluoride contamination in groundwater in parts of Nalgonda District, Andhra Pradesh, India

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Abstract

Serious problems are faced in several parts of the world due to the presence of high concentration of fluoride in drinking water which causes dental and skeletal fluorosis to humans. Nalgonda district in Andhra Pradesh, India is one such region where high concentration of fluoride is present in groundwater. Since there are no major studies in the recent past, the present study was carried out to understand the present status of groundwater quality in Nalgonda and also to assess the possible causes for high concentration of fluoride in groundwater. Samples from 45 wells were collected once every 2 months and analyzed for fluoride concentration using an ion chromatograph. The fluoride concentration in groundwater of this region ranged from 0.1 to 8.8 mg/l with a mean of 1.3 mg/l. About 52% of the samples collected were suitable for human consumption. However, 18% of the samples were having less than the required limit of 0.6 mg/l, and 30% of the samples possessed high concentration of fluoride, i.e., above 1.5 mg/l. Weathering of rocks and evaporation of groundwater are responsible for high fluoride concentration in groundwater of this area apart from anthropogenic activities including irrigation which accelerates weathering of rocks.

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Authors and Affiliations

  1. Department of Geology, Anna University, Chennai, 600025, India

    K. Brindha, R. Rajesh, R. Murugan & L. Elango

Authors
  1. K. Brindha
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  2. R. Rajesh
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  3. R. Murugan
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  4. L. Elango
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Correspondence to L. Elango.

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Brindha, K., Rajesh, R., Murugan, R. et al. Fluoride contamination in groundwater in parts of Nalgonda District, Andhra Pradesh, India. Environ Monit Assess 172, 481–492 (2011). https://doi.org/10.1007/s10661-010-1348-0

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  • DOI: https://doi.org/10.1007/s10661-010-1348-0

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