Geochemical signatures and isotopic systematics constraining dynamics of fluoride contamination in groundwater across Jamui district, Indo-Gangetic alluvial plains, India

Kumar, Suresh; Venkatesh, A. S.; Singh, Rambabu; Udayabhanu, G.; Saha, Dipankar

doi:10.1016/j.chemosphere.2018.04.116

Cited by 99 publications

(37 citation statements)

References 28 publications

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“…89% groundwater samples in pre-monsoon and 87% groundwater samples in post-monsoon). It may be concluded from this that addition of fluoride in the solution is due to its prolonged retention time in the aquifer matrix and not from meteoric sources 31 . It has also been endorsed in some more studies that fluoride concentration generally banks on the extent of water- rock interaction as fluoride primarily originates from geogenic sources 5,45,47 .…”

Section: Resultsmentioning

confidence: 83%

“…The incidence of excessive fluoride in groundwater is intense and alarming in the Indian states of Telangana, Bihar, Gujarat, Madhya Pradesh, Rajasthan, Tamil Nadu, Assam and Uttar Pradesh 30 . In the present study area which is a part of Jamui district of Bihar state in India, where excessive fluoride concentration has been reported in groundwater in parts of Indo-Gangetic Alluvial Plains where population density is relatively high 31 .…”

Section: Introductionmentioning

confidence: 67%

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Medical Geological assessment of fluoride contaminated groundwater in parts of Indo-Gangetic Alluvial plains

Kumar

Singh²,

Venkatesh

et al. 2019

Sci Rep

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As drinking water is considered as a major pathway of exposure to fluoride in the human body, an endeavor has been made for the assessment of the non-carcinogenic health risk by using hazard quotient (HQ) of fluoride for males, females, and children separately in fluoride affected ground water areas of Indo-Gangetic Alluvial Plains. The study suggests that children groups are more prone to the non-carcinogenic risk of fluoride in the area as HQ for fluoride is more than unitary in 44% (Pre-monsoon) and 38% (Post-monsoon) samples respectively. Field survey conducted in fluoride-affected villagers of the study area portrays cases of mottling of teeth and bone deformities depending on the duration and dosage of fluoride consumption. Petrographic observations of host rocks coupled with molar ratios of chemical species studies exemplify that weathered material developed over the granite-gneiss, mica-schist, amphibolite, granitic intrusive and pegmatite veins due to weathering and extensive water-rock interaction resulting higher concentration of fluoride in groundwater. Likewise, the base exchange index (r1) and meteoric genesis index (r2) advocates that most of the samples belong to Na+-HCO3− type and meteoric origin respectively, and substantiate longer residence time of water along with solute acquisition processes are responsible for elevated fluoride in groundwater. It is, therefore, solar energy-driven electrolytic de-fluoridation technology ought to be provided on a priority basis to the affected inhabitants besides the implementation of rainwater harvesting schemes for mitigation/ dilution of elevated fluoride concentration.

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Section: Resultsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 67%

Medical Geological assessment of fluoride contaminated groundwater in parts of Indo-Gangetic Alluvial plains

Kumar

Singh²,

Venkatesh

et al. 2019

Sci Rep

Self Cite

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“…For example, Travi (1993) noted elevated fluoride concentrations in CFA containing aquifers in Senegal with low calcium concentrations. High fluoride concentrations have also been reported for aquifers containing CFA and trace phosphate minerals where calcium has been removed from groundwater as a result of calcite precipitation (Abu Jabal et al, 2014;Kumar et al, 2018;Rafique et al, 2015) or cation exchange (Edmunds and Smedley, 2013). These naturally occurring water-rock interactions illustrate the potential for fluoride mobilisation to occur during MAR in cases where the injectate contains lower concentrations of calcium than the native groundwater (NGW).…”

Section: Introductionmentioning

confidence: 95%

Fluoride and phosphate release from carbonate-rich fluorapatite during managed aquifer recharge

Schäfer

Donn

Atteia

et al. 2018

Journal of Hydrology

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Managed aquifer recharge (MAR) is increasingly used as a water management tool to enhance water availability and to improve water quality. Until now, however, the risk of fluoride release during MAR with low ionic strength injectate has not been recognised or examined. In this study we analyse and report the mobilisation of fluoride (up to 58 µM) and filterable reactive phosphorus (FRP) (up to 55 µM) during a field groundwater replenishment experiment in which highly treated, deionised wastewater (average TDS 33 mg/L) was injected into a siliciclastic Cretaceous aquifer. In the field experiment, maximum concentrations, which coincided with a rise in pH, exceeded background groundwater concentrations by an average factor of 3.6 for fluoride and 24 for FRP. The combined results from the field experiment, a detailed mineralogical characterisation and geochemical modelling suggested carbonate-rich fluorapatite (CFA: Ca 10 (PO 4) 5 (CO 3 ,F)F 2) to be the most likely source of fluoride and phosphate release. An anoxic batch experiment with powdered CFA-rich nodules sourced from the target aquifer and aqueous solutions of successively decreasing ionic strength closely replicated the field-observed fluoride and phosphate behaviour. Based on the laboratory experiment and geochemical modelling, we hypothesise that the release of fluoride and phosphate results from the incongruent dissolution of CFA and the simultaneous formation of a depleted layer that has hydrated di-basic calcium phosphate (CaHPO 4 •nH 2 O) composition at the CFA-water interface. Disequilibrium caused by calcium removal following breakthrough of the deionised injectate triggered the release of fluoride and phosphate. Given the increasing use of highly treated, deionised water for MAR and the ubiquitous presence of CFA and fluorapatite (Ca 10 (PO 4) 6 F 2) in aquifer settings worldwide, the risk of fluoride and phosphate release needs to be considered in the MAR design process.

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“…Controlling the drainage to the groundwater in the vicinity of the lake could be the second tool (in addition to building constructed wetland) to protect water quality, if this could be established and managed. It has been reported that a higher pH, EC, and TDS caused by the lake-groundwater exchange could decrease the concentration of F − in lake water and help F − immobilization in sediment [56][57][58][59], which would be desirable in summer fish farming season. In addition, a higher pH facilitates the immobilization of metal cations and desorption of anions [60].…”

Section: Variations Of Ph F − and Dissolved Oxygen In Different Lomentioning

confidence: 99%

Assessment of Lake Water Quality and Eutrophication Risk in an Agricultural Irrigation Area: A Case Study of the Chagan Lake in Northeast China

Liu

Zhang

Sun

et al. 2019

Water

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Water quality safety is the key factor to maintain the ecosystem service functions of lakes. Field investigations and statistical analyses were carried out to study the water quality of a large, agriculture-stressed lakes (e.g., Chagan Lake) in Northeast China. The hydro-chemical properties of the Chagan Lake are HCO3·CO3-Na. Nutrient (N and P) and non-nutrient (pH and F−) were found to be the major factors that threaten water quality safety of the lake. The concentration of total nitrogen (TN) and total phosphorus (TP) was found to vary seasonally and at different locations. The overall lake water had mean TN and TP values of 2.19 mg/L and 0.49 mg/L, respectively, in summer. TN was the major factor for water quality deterioration in the western region of the lake, while TP was the principal factor in the other regions, as determined by a principal component analysis (PCA). Fluoride (F−) concentration in the lake water were related to the values of total dissolved solid (TDS), pH, and electrical conductivity (EC). In addition, eutrophication is a fundamental index that has been affecting the ecological evaluation of water quality. The results showed that trophic level index (TLI), trophic state index (TSI), and eutrophication index (EI) were evaluated to quantify the risk of eutrophication. However, TLI and TSI can better describe the purification effect of the wetland. These indices showed that the lake water was hyper-eutrophic in summer, with TLI, TSI, and EI values of 60.1, 63.0, and 66.6, respectively. Disparities in water quality were observed among whole areas of the lake. Overall, this study revealed that controlling agriculture drainage is crucial for lake water quality management. The study generated critical data for making water quality management plans to control the risk.

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Geochemical signatures and isotopic systematics constraining dynamics of fluoride contamination in groundwater across Jamui district, Indo-Gangetic alluvial plains, India

Cited by 99 publications

References 28 publications

Medical Geological assessment of fluoride contaminated groundwater in parts of Indo-Gangetic Alluvial plains

Medical Geological assessment of fluoride contaminated groundwater in parts of Indo-Gangetic Alluvial plains

Fluoride and phosphate release from carbonate-rich fluorapatite during managed aquifer recharge

Assessment of Lake Water Quality and Eutrophication Risk in an Agricultural Irrigation Area: A Case Study of the Chagan Lake in Northeast China

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