Assessment of silica content in groundwater of Peninsular Indian region using statistical techniques

Kishan Singh Rawat(1*), Sudhir Kumar Singh(2), Vinod Kumar Tripathi(3)

(1) Geo-Informatics, Civil Engineering Department, Graphic Era (Deemed to be University) Dehradun - 248002, Uttrakhand, India
(2) K. Banerjee Centre of Atmospheric Ocean Studies, IIDS, Nehru Science Centre, University of Allahabad, Prayagraj-21102 (U.P.), India.
(3) Department of Agricultural Engineering, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi - 221005 (U.P.)
(*) Corresponding Author


The groundwater resources from open dug wells are the ultimate and inevitable drinking water source in Chennai municipality. These are of shallow depth of 8 to 10m with a static water depth range of 30 to 75 m. This study's objective was to assess silica (in the form of Silicon Dioxide, SiO2) in groundwater and to establish their baseline concentration. Twelve wells were monitored in the study area, in some parameters, namely: Chloride (Cl-), Total Dissolved Solids (TDS), pH, Electrical Conductivity (EC), and SiO2. We examined the existing relationship between silica and other measured water quality parameters (Cl-, pH, TDS, and EC) using Spearman correlation matrix analysis in SPSS software and Normalized Difference Dispersal Index (NDDI) in Simplex Numerix software that was applied to identify the hotspots of SiO2. The water pH ranges from 8.09 to 8.37 (slightly alkaline) with an appreciable amount of TDS (730.50 to 1294.50 ppm). The groundwater also contains abundant silica (15.50 to 24.0 ppm), Cl- (106 to 438 ppm), and EC (759.50 to 1837.50 µS/cm). Further, a geostatistical tool was used to derive NDDI map of groundwater quality parameters and quantified site-specific variations in parameters, namely SiO2, Cl-, pH, TDS, and EC values. Average NDDI value enrichment was exhibited by SiO2 (0.09, ≈ 0.1) it reflects accretion, while average NDDI values of Cl- (–0.09, ≈–0.1), EC (–0.04), TDS (–0.03), and pH (–0.02), it outlined that by dilution in particular groundwater parameter.


Chennai municipality; silica; Normalized Difference Dispersal Index; statistical techniques

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Bamgbose,O.,Arowolo, T.A.,&O. Odukoya,2009:Comparison of drinking water quality in Abeokuta Township with WHO standards.Water Res,12,37−44.

Chehata, M., Jasinski, D., Monteith, M.C.,&W.B. Samuels 2007:Mapping three-dimensional water-quality data in the Chesapeake Bay using geostatistics.J Am Water Resour Assoc., 43/3, 813–828.doi:

Dobbie,J.W.,&M.J. Smith1982:Silicate nephrotoxicity in the experimental animal: the missing factor in analgesic nephropathy. Scott Med J. 27/1,10−6.

Fournier, R.O.1983:A revised and expanded silica geothermometer.Bull. Geotherm. Res. Council, 11: 329.

Ghahramani, N.2010:Silica nephropathy.IntJ Occup Environ Med,1/3,108−115.

Giggenbach, W.F., Gonfiantini, R., Jangi, B.L.,&A.H. Truesdell 1985:Isotopic and chemical composition of Parbati valley geothermal discharges, Northwest Himalaya India. Geothermics,12,199–222.

Gautam, S. K., Tripathi, J. K., & Singh, S. K. (2020). Assessing the suitability of Ghaghra River water for irrigation purpose in India. Agricultural Water Management: Theories and Practices, 12, 67.

Gautam, S. K., Maharana, C., Sharma, D., Singh, A. K., Tripathi, J. K., & Singh, S. K. (2015). Evaluation of groundwater quality in the Chotanagpur plateau region of the Subarnarekha river basin, Jharkhand State, India. Sustainability of Water Quality and Ecology, 6, 57-74.

Gautam, S. K., Evangelos, T., Singh, S. K., Tripathi, J. K., & Singh, A. K. (2018). Environmental monitoring of water resources with the use of PoS index: a case study from Subarnarekha River basin, India. Environmental earth sciences, 77(3), 70.

Hauglustaine, D.,Van Damme,B., Daenens, P.,&P. Michielsen1980:Silicon nephropathy, a possible occupational hazard.Nephron,26/5:219-24.

J.D. Hem1970.Study and Interpretation of the Chemical Characteristics of Natural Waters. Excellent Reviews of the Chemistry of Natural Water and of the Significance of Properties and Constituents Reported in Water Analyses. 2nd Edition. U.S. Geol. Survey. Water Supply Paper No. 1473: P. 363.

J.D. Hem 1985:Study and Interpretation of the Chemical Characteristics of Natural Water. 3rd Edition. U.S. Geological Survey Water-Supply Paper 2254:P. 263.

Iler,R.K. 1979:The Chemistry of Silica: Solubility, Polymerization, Colloid and Surface Properties and Biochemistry.John Wiley and Sons. New York.

Jacintha T.G.A., Rawat, K.S., Mishra, A.,&S.K. Singh2016:Hydrogeochemical Characterization of Groundwater of Penninsular Indian Region using Multivariate Statistical Techniques.Appl Water Sci,7/6, 3001–3013

Jansen, N.,& Hartmann, J., Lauerwald,R., Durr, H.H., Kempe, S., Loos, S.,&H Middelkoop2010:Dissolved silica mobilization in the conterminous USA.Chem Geol, 270, 90-109.

Nemčić-Jurec, J., Singh, S. K., Jazbec, A., Gautam, S. K., & Kovač, I. (2019). Hydrochemical investigations of groundwater quality for drinking and irrigational purposes: two case studies of Koprivnica-Križevci County (Croatia) and district Allahabad (India). Sustainable Water Resources Management, 5(2), 467-490.

Lopez-Granados, F., Jurado-Expósito, M., Peña-Barragán, J.M.,&L. García-Torres2005:Using geostatistical and remote sensing approaches for mapping soil properties.Eur. J. Agron,23/3, 279–289. doi:

Maliqi, E., Jusufi, K., & Singh, S. K. (2020). Assessment and Spatial Mapping of Groundwater Quality Parameters Using Metal Pollution Indices, Graphical Methods and Geoinformatics. Analytical Chemistry Letters, 10(2), 152-180.

Marchand,D., Rayan, C., Bethune, D.N.,&Chu, A. (2002). Groundwater–Surface Water Interaction and Nitrate Oriin in Municipal Water Supply Aquifers, Sanjose. Costa.Rica.

Moharir, K., Pande, C., Singh, S. K., Choudhari, P., Kishan, R., & Jeyakumar, L. (2019). Spatial interpolation approach-based appraisal of groundwater quality of arid regions. Journal of Water Supply: Research and Technology—AQUA, 68(6), 431-447.

Nigerian Environmental Study Team (NEST). Nigeria's Threatened Environment: A National Profile Ibadan. (1991).NEST Publication, P 45.

Nour, M.H., Smit, D.W.,&M.G. EL-Din2006:Geostatistical mapping of precipitation Implication for rain gauge network design.Water. Sci Technol,53/10,101–110.

Osorio,A.M., Thun,M.J., Novak, R.F., Van Cura, E.J.,&E.D. Avner1987:Silica and glomerulonephritis: case report and review of the literature.Am J Kidney Dis.9/3,224−30.

Palacky, G.J.,&K. Kadekaru1979:Effect of tropical weathering on electrical and electromagnetic measurements.Geophysics, 44/1:59-68.

Rawat,K.S., Jacintha, T.G.A., Singh, S.K., Nemčić-Jurec J.,&V.K. Tripathi2017:Appraisal of Long Term Groundwater Quality of Peninsular India using Water Quality Index and Fractal Dimension. J. Earth Syst, 126/8, 126:122.

Rawat, K.S., Mishra, A.K.,&S.K. Singh2017:Mapping of Groundwater Quality Using Normalized Difference Dispersal Index of Dwarka Sub-city at Delhi National Capital of India.ISH JHydraEngi,23/3,229-240.

Rawat,K.S.,Singh,S.K. & S. Guatam 2018:Assessment of groundwater quality for irrigation use: a Peninsular case study.ApplWater Sci.,8:233.1-24.

Rawat, K.S.,&S.K. Singh,2018:Water Quality Indices and GIS-based evaluation of a decadal groundwater quality. Geology Ecology and Landscapes,2/4, 240-255

Moharir, K, Pande, C., Singh, S.K., Choudhari, P.P.,Rawat, K.S,&L. Jeyakumar 2019:Spatial interpolation approach-based appraisal of groundwater quality of arid regions. Journal of Water Supply: Research and Technology – AQUA, 68 (6), 431–447

Rawat, K.S., Tripathi, V.K.,&S.K. Singh2018a:Groundwater Quality Evaluation using Numerical Indices: a case study (Delhi, India).Sustainable Water Resources Management, 4, 875–885. doi:10.1007/s40899-017-0181-9.

Rawat KS., Jacintha TGA.,& S.K. Singh 2018b:Hydro-chemical Survey and Quantifying Spatial Variations in Groundwater Quality in Coastal Region of Chennai, Tamilnadu, India – a case study. Indonesian Journal of Geography, 50 (1), 57 – 69.

Rawat, K.S.,&S.K. Singh2018c:An integrated framework for identification of polluted zones: a study from coastal aquifer of India. Indonesian Journal of Geography, 51(1), 78-87.

Rawat KS., Singh SK., Jacintha TGA., Nemcˇic´-Jurec J.,&V.K.Tripathi 2018d: Appraisal of long term groundwater quality of peninsular India using water quality index and fractal dimension. J. Earth Syst. Sci. 126:122, 1-24.

Rawat, K.S., Jeyakumar, L., Singh, S.K.,&V.K. Tripathi2019:Appraisal of Groundwater with Special Reference to Nitrate Using Statistical Index Approach. Groundwater for Sustainable Development,8, 49-58.

Rawat, K.S., Pradhan, S., Tripathi, V.K., Lordwin, J.,&S.K. Singh 2019b:An application of Water Quality Index (WQI) and statistical approaches to evaluate the Groundwater Contamination for drinking and irrigation purposes. Groundwater for Sustainable Development,9, 1-12.

Saravanan, J., Rawat, K.S.,&S.K. Singh 2018: Groundwater quality of coastal aquifer evaluation using spatial analysis approach.Oriental Journal of Chemistry,34(6), 2902-2912

Saravanan,J., Rawat,K.S.,&S.K. Singh2018:Study of Sub Surface Hydrogeology of Chennai Metropolitan Area.Current World Environ, 13(3), 317-330.

Sauquet, E.(2006). Mapping mean annual river discharge: Geostatistical development for incorporating river network dependencies.J Hydrol, 331/1–2, 300–314.

Sobulo, T.O.(1919). Survey of water supply and disposal system in Abeokuta with suggestions.Nig J Sci,21:10−15.

Singh, S. K., Srivastava, P. K., Singh, D., Han, D., Gautam, S. K., & Pandey, A. C. (2015). Modeling groundwater quality over a humid subtropical region using numerical indices, earth observation datasets, and X-ray diffraction technique: a case study of Allahabad district, India. Environmental geochemistry and health, 37(1), 157-180.

Singh, S. K., Srivastava, P. K., Pandey, A. C., & Gautam, S. K. (2013). Integrated assessment of groundwater influenced by a confluence river system: concurrence with remote sensing and geochemical modelling. Water resources management, 27(12), 4291-4313.

Singh, S. K., Singh, P., & Gautam, S. K. (2016). Appraisal of urban lake water quality through numerical index, multivariate statistics and earth observation data sets. International journal of environmental science and technology, 13(2), 445-456.

Stratta,P., Canavese, C., Messuerotti,A., Fenoglio, I.,&Fubini, B. (2001). Silica and renal diseases: no longer a problem in the 21st century.J. Nephrol.14/4, 228−247.

Swanberg, C.A.,&P. Morgan1978:The linear relation between temperatures based on the silica content of groundwater and regional heatflow: a new heat flow map of the United State.J Pure Appl Geophys, 117, 1–2012.

Todd, M.J., Lowrance, R.R., Goovaerts, P., Vellidis, G.,&C.M. Pringle2010:Geostatistical modeling of the spatial distribution of sediment oxygen demand within a Coastal Plain backwater watershed.Geoderma, 159/1–2,53–62.

Wackernagel, H., Lajaunie, C., Blond, N., Roth, C.,&R. Vautard2004:Geostatistical risk mapping with chemical transport model output and ozone station data.Ecol. Modell, 179/2, 177–185.

World Health Organization (WHO)2006:Safe Water and Global Health, From<www.who/int/features/qa/ 70/en/index.htm. (Retrieved on 12 May 2011).

Yousafzai, A., Eckstein, Y.,&P.S. Dahal2010:Hydrochemical signatures of deep groundwater circulation in a part of the Himalayan foreland basin.Environ Earth Sci,59, 1079–1098.


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