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Dataset on hydrogeochemical characteristics of groundwater and surface water in Kattumannarkoil Taluk, India.

ABSTRACT: Surfacewater overlay groundwater at the groundwater/surface water interface(GSI). Water and chemicals are continually exchanged via GSI. Surface water recharges the underlying aquifer and undergo significant changes in chemical composition before it discharges back into the stream or at the surface. Thus a sustainable management of water resource needs an insight in the water chemistry and seasonal variations. The hydrochemical dataset representing a total of 37 groundwater samples and 13 surface water samples has been collected from Kattumannarkoil taluk,India to identify the factors governing water chemistry of the region. Hence, the samples were collected during two different seasons summer (April 2015) and monsoon (September 2015) to broadly cover seasonal variation. The collected samples were analyzed for physical and chemical parameters. The physical parameters measured in the field are pH, electrical conductivity (EC), total dissolved solids (TDS). The chemical parameters analyzed in the laboratory are calcium (Ca2+), magnesium (Mg2+), sodium (Na+), potassium (K +), chloride (Cl-), bicarbonate (HCO3 -), nitrate (NO3 -), phosphate (PO4), sulfate (SO4 2+) and silica (H4SiO4). Furthermore, the results were processed using AquaChem software, Geographical information system (GIS), multivariate statistical techniques and a computer program WATCLAST written in C ++. This hydrochemical dataset ascertain the utility purpose of water. The dataset can serve as a guide for hydrogeochemistry of other predominantly agricultural area that share similar geological characteristics. The raw data of this research work is hosted in the mendeley repository [1].

SUBMITTER: Rumuri R

PROVIDER: S-EPMC7396899 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Dataset on hydrogeochemical characteristics of groundwater and surface water in Kattumannarkoil Taluk, India.

Rumuri Remy R

Data in brief 20200722

Surfacewater overlay groundwater at the groundwater/surface water interface(GSI). Water and chemicals are continually exchanged via GSI. Surface water recharges the underlying aquifer and undergo significant changes in chemical composition before it discharges back into the stream or at the surface. Thus a sustainable management of water resource needs an insight in the water chemistry and seasonal variations. The hydrochemical dataset representing a total of 37 groundwater samples and 13 surfac ...[more]

PMID: 32775572

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Project description:Arsenic (As), contamination in drinking groundwater resources is commonly environmental problem in many developing countries including Pakistan, with significant human health risk reports. In order to examine the groundwater quality concerning As contamination, its geochemical behavior along with physicochemical parameters, 42 samples were collected from community tube wells from District Bahawalpur, Punjab, Pakistan. The results showed the concentration of elevated As, its source of mobilization, and associated public health risk. The As concentration detected in groundwater samples varied from 0.12 to 104 µg/L with an average value of 34.7 µg/L. Among 42 groundwater samples, 27 samples were beyond the permitted limit of 10 µg/L recommended by World Health Organization (WHO), for drinking purposes. Statistical analysis result show that the groundwater cations values are in decreasing order such as: Na+ > Mg2+ > Ca2+ > K+, while anions were HCO3- > SO42- > Cl- > NO3-. Hydrochemical facies result depict that the groundwater samples of the study area, 14 samples belong to CaHCO3 type, 5 samples belong to NaCl type, 20 samples belong to Mixed CaMgCl type, and 3 samples belong to CaCl2 type. It can be accredited due to weathering and recharge mechanism, evaporation processes, and reverse ion exchange. Gibbs diagram shows that rock water interaction controls the hydrochemistry of groundwater resources of the study area. Saturation Index (SI) result indicated the saturation of calcite, dolomite, gypsum, geothite, and hematite mineral due their positive SI values. The principal component analysis (PCA) results possess a total variability of 80.69% signifying the anthropogenic and geogenic source of contamination. The results of the exposure-health-risk-assessment method for measuring As reveal significant potential non-carcinogenic risk (HQ), exceeding the threshold level of (> 1) for children in the study area. Water quality assessment results shows that 24 samples were not suitable for drinking purposes.

Dataset Information

Dataset on hydrogeochemical characteristics of groundwater and surface water in Kattumannarkoil Taluk, India.

Publications

Dataset on hydrogeochemical characteristics of groundwater and surface water in Kattumannarkoil Taluk, India.

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