Journal
GEOCARTO INTERNATIONAL
Volume 37, Issue 25, Pages 10843-10854Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10106049.2022.2040603
Keywords
Groundwater quality; drinking purposes; ions distribution; GIS technique; India
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Funding
- Department of Science and Technology (DST), Science and Engineering Research Board (SERB), New Delhi, India [SR/FTP/ES-13/2013]
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The present study evaluated the quality of groundwater for drinking purposes. Various parameters were analyzed and compared with international and Indian standards, showing that the concentrations of sodium, chloride, and fluoride in the groundwater exceeded the acceptable limits. Furthermore, a majority of the samples were classified as very hard water.
In the present study, the quality of groundwater for drinking purposes was evaluated. The following parameters were analyzed using American Public Health Association standard method: pH, total hardness (TH), total dissolved solids (TDS), electrical conductivity (EC), bicarbonate (HCO3-), chloride (Cl-), sulphate (SO42-), fluoride (F-), calcium (Ca2+), magnesium (Mg2+), sodium (Na+) and potassium (K+). These values were compared with limits recommended by the World Health Organization (WHO) and the Bureau of Indian Standards (BIS) for drinking purposes. The cation and anion dominance of the study region groundwater samples were Na+ > Ca2+ > Mg2+ > K+ and HCO3- > Cl- > SO42- > F-, respectively. Bicarbonate was the dominant anion and Na+ was identified as the dominant cation in the groundwater of the study region. The Na+ and Cl- concentration of 43% and 37% of groundwater samples were found to be more than the acceptable limit of WHO in the study region. Most of the groundwater samples in the study region were categorized as a very hard category. The groundwater was highly affected by the fluoride and about 60% of groundwater samples were unfit for drinking purposes in the study region.
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