naa a22 4500 510755356 CHVBK 20180411083120.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12594-013-0045-3 doi (NATIONALLICENCE)springer-10.1007/s12594-013-0045-3 A Statistical appraisal to hydrogeochemistry of fluoride contaminated ground water in Nayagarh district, Odisha [Elektronische Daten] [S. Routroy, R. Harichandan, J. Mohanty, C. Panda] Seasonal variation of ground water in Nayagarh district, Odisha is determined by analysing both pre and post monsoon water samples. The high fluoride content is an endemic problem in the area and special attention was attached to the point. The chemical compositions of the ground water of the area are dominated by CaCl, NaCl and mixed CaMgCl types in pre-monsoon and CaHCO3-mixed CaMgCl type in post-monsoon. This is largely due to chemical weathering of Eastern Ghats Mobile Belt rock types. Increasing alkalinity vis-a-vis F concentration in pre-monsoon is associated with sodium-bicarbonate water types having high pH (>7) and low calcium and magnesium contents. The percentage of total high fluoride containing water samples is nearly double in pre-monsoon than in post-monsoon. During both the seasons, pH values indicate mildly alkaline to weakly acidic nature of the water samples. Fluoride concentration has good correlation with pH in pre-monsoon whereas in post-monsoon it shows good correlation with Fe. Facies analysis indicates that water is becoming predominantly Ca-Na cation and Cl-SO4-HCO3 anion type in premonsoon than Ca-Mg type and HCO3-Cl-SO4 type in post-monsoon. The seasonal variations in concentrations of anthropogenic components demonstrate that the groundwater system is very less liable to pollution by human activities. Geological Society of India, 2013 Hydrogeochemistry nationallicence Water analysis nationallicence Fluoride contamination nationallicence Facies analysis nationallicence Clusture analysis nationallicence PCA/FA nationallicence Odisha nationallicence Routroy S. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut Harichandan R. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut Mohanty J. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut Panda C. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut Journal of the Geological Society of India Springer-Verlag 81/3(2013-03-01), 350-360 0016-7622 81:3<350 2013 81 12594 https://doi.org/10.1007/s12594-013-0045-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0045-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Routroy S. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut NATIONALLICENCE 700 1- Harichandan R. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut NATIONALLICENCE 700 1- Mohanty J. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut NATIONALLICENCE 700 1- Panda C. Institute of Minerals and Materials Technology (CSIR), Bhubaneswar, Odisha aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer-Verlag 81/3(2013-03-01), 350-360 0016-7622 81:3<350 2013 81 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer