Chemistry and quality of groundwater in a coastal region of Andhra Pradesh, India

Rao, N. Subba; Vidyasagar, G.; Rao, P. Surya; Bhanumurthy, P.

doi:10.1007/s13201-014-0244-0

Cited by 25 publications

(11 citation statements)

References 19 publications

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“…Determination of physical, chemical and bacteriological quality of water is essential for assessing its suitability for various purposes like drinking, domestic, agricultural and industrial uses. A number of studies on groundwater quality with respect to drinking and irrigation purposes have been carried out in different parts of India (Durvey et al 1997;Agarwal and Jagetia 1997;Niranjan Babu et al 1997;Subba Rao et al 1999;Majumdar and Gupta 2000;Dasgupta and Purohit 2001;Khurshid et al 2002;Sujatha and Reddy 2003;Pulle et al 2005;Hussain et al 2005;Sunitha et al 2005;Subba Rao 2006). The study area is predominantly an agricultural zone with dense agricultural activities and also located near the coastal region.…”

Section: Introductionmentioning

confidence: 99%

A study on groundwater geochemistry and water quality in layered aquifers system of Pondicherry region, southeast India

et al. 2012

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Geochemical signatures of groundwater in the Pondicherry region, south India, were determined. The coastal aquifers are fragile and this situation becomes more intense in layered aquifer systems like that of the Pondicherry region. In this region, groundwater occurs in alluvium, Lower Cuddalore, Upper Cuddalore, Tertiary, Cretaceous and mixed aquifers. The geochemical signature of groundwater in these formations was studied by collecting 93 groundwater samples. The collected samples from specific formations were analysed for physical parameters, such as electrical conductivity (EC), pH and major ion concentrations, such as Ca, Mg, Na, K, Cl, HCO 3 , PO 4 and SO 4. The results of the analysis were interpreted with geology; the ionic concentrations in the groundwater vary spatially and temporally. The abundance of these ions are in the following order: Na [ Ca [ Mg [ K = Cl [ HCO 3 [ SO 4. Interpretation of analytical data shows that Ca-Na and Cl-SO 4-HCO 3 is the dominant facies in all the formations. Groundwater in the area is generally hard and fresh-brackish in most of the formations and brackish in nature in alluvium formation. The sodium absorption ratio shows that most of the samples are grouped under excellent category to good category in all the formations. The residual sodium carbonate also are in good category in all the formations. Chloro-alkaline indices reveal that the majority of samples show negative values in all the litho units indicating the exchange of Na and K in groundwater with Mg or Ca in rock. Scholler classification of water indicates that longer residence time of water with more prominent base exchange. High EC and TDS values in certain locations of alluvial, Upper Cuddalore and Cretaceous formations prove to be unsuitable for drinking and irrigation purposes.

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Section: Introductionmentioning

confidence: 99%

A study on groundwater geochemistry and water quality in layered aquifers system of Pondicherry region, southeast India

et al. 2012

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“…A higher Na ? indicates the dissolution of minerals and/ or soil salts as well as the influence of anthropogenic and marine sources (Todd 1980;Stallard and Edmond 1987;Subba Rao 2002;Subba Rao et al 2014). A dominance of HCO 3…”

Section: Resultsmentioning

confidence: 99%

“…An abundance of Clis a result of leaching from soils and the influence of domestic wastes, salt pans, aquacultural activities, etc. (Todd 1980;Subba Rao et al 2014). Furthermore, the solubility of Na ?…”

Section: Resultsmentioning

confidence: 99%

Deleneation of groundwater quality in the presence of fluoride in selected villages of Simlapal block, Bankura district, West Bengal, India

Das

Dey

Mondal

2016

Sustain. Water Resour. Manag.

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Fluoride contamination and other physicochemical parameters in groundwater of Simlapal block of Bankura district were investigated. A total of 50 deep tube well (DTW) samples were collected from 18 villages of Simlapal. The higher concentration of iron values was recorded, 9.40 mg/L with an average value of 2.11 mg/L. Drastically, 58 % of water samples exceed the permissible limit of 1.5 mg/L (Guidelines for drinking water quality, World Health Organization, Geneva, 2004). Spatial distribution of F-(Guidelines for drinking water quality, World Health Organization, Geneva, 2004) concentration classes is represented by the simple Inverse Distance Weighting (IDW) interpolation method. The affinity between the pH and Fin groundwater suggests the dissolution of fluoridebearing minerals in groundwater. Furthermore, the pH has a good positive correlation with HCO 3-(r = 0.224). This indicates a prevailing condition of alkalinity (caused by HCO 3 only here) in the groundwater, which promotes a mineral dissolution. The Fshows a significant positive correlation with pH (r = 0.313, p \ 0.05) and HCO 3-(r = 0.224), while it has a negative correlation with Ca and Mg ions (r =-0.225 and-0.226). PCA accounts for 74.21 % of the variability for the first four components. F1 values have high loading (32.71 %), second component (F2) exhibits 19.98 %, third component (F3) shows 12.74 %, and fourth component (F4) shows only 8.72 % of the total variability to justify the significant correlation between chemical constituents. In terms of quality of water, sodium adsorption rate (SAR) showed that all the samples are from the group of excellent to good. With respect to permeability, sodium percentages show that 18 % are permissible but doubtful and 2 % are unsuitable for irrigation purposes.

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“…Various diagrams have been developed over the years for visualization of water chemistry and they have been widely used by the researchers and practitioners. The first graphical technique has been proposed by [46] but, actually, the most popular diagrams are the Piper [47] and the Langelier-Ludwig square diagrams [48] which have been largely applied [49][50][51][52]. 2.4.…”

Section: Langelier-ludwig Squaredmentioning

confidence: 99%

Geochemical Characterization of Spring Waters in the Crati River Basin, Calabria (Southern Italy)

et al. 2019

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The characterization of the spatial variation of geochemical parameters in spring waters, especially the ones used for drinking purpose, is essential to identify potential risks to humans. In this work, results of a qualitative analysis on 190 samples of spring waters collected in the largest catchment of the Calabria region (southern Italy) are shown. Several physical and chemical parameters were analysed and the Langelier-Ludwig diagram was built to evaluate the hydrochemical facies of the sampled waters. Additionally, the relationships between water temperature and altitude and electric conductivity (EC) and altitude were assessed. Geostatistical methods were used to map the physical and chemical parameters. Results showed a good quality status of the spring waters in the Crati basin, with a predominant Ca-Mg-type hydrochemical facies. Then, a connection between EC and temperature with elevation has been detected in some area of the basin. Finally, the spatial analysis allowed identifying the distribution of the concentration of the several parameters.

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Chemistry and quality of groundwater in a coastal region of Andhra Pradesh, India

Cited by 25 publications

References 19 publications

A study on groundwater geochemistry and water quality in layered aquifers system of Pondicherry region, southeast India

A study on groundwater geochemistry and water quality in layered aquifers system of Pondicherry region, southeast India

Deleneation of groundwater quality in the presence of fluoride in selected villages of Simlapal block, Bankura district, West Bengal, India

Geochemical Characterization of Spring Waters in the Crati River Basin, Calabria (Southern Italy)

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