Groundwater Arsenic Contamination and Potential Health Risk Assessment of Gangetic Plains of Jharkhand, India

Alam, Md. Osaid; Shaikh, Wasim Akram; Chakraborty, Sukalyan; Avishek, Kirti; Bhattacharya, Tanushree

doi:10.1007/s12403-015-0188-0

Cited by 68 publications

(9 citation statements)

References 30 publications

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“…For inorganic As, four main oxidation states commonly exist: As −3 (arsine), As 0 (elemental arsenic), As +3 (arsenite), and As +5 (Arsenate). As contamination of the environment is a matter of concern since As accumulates in environment and enters the food chain through drinking water and crops (Chakraborty et al 2014;Alam et al 2016). The main sources of As groundwater contamination can be both natural and anthropogenic (ref).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of As (III) and As (V) from aqueous solution by modified Cassia fistula (golden shower) biochar

et al. 2018

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The biosorption of two Arsenic (As) species [As (III) and As (V)] from aqueous solution onto activated biochar derived from Cassia fistula, belonging to Fabaceae family was studied. SEM/EDX characterization of the adsorbent showed an irregular, porous, and heterogeneous surface morphology with calcium and iron available for As binding. FTIR also showed the presence of groups responsible for As adsorption. Batch adsorption experiments were conducted to determine the optimum conditions for As adsorption to the biomass with optimum adsorbent dose, ambient temperature, initial concentration of As, pH, and stirring rate. Under optimized conditions, the maximum removal percentage was 78.1% [uptake capacity (q e) = 0.78 mg/g] for As (III) and 84.8% [uptake capacity (q e) = 0.42 mg/g] for As (V). The Freundlich isotherm model, characteristic of multilayer binding, fit the data best with R 2 values of 0.92 for As (III) and 0.96 for As (V). Fitting of the data to the Dubinin-Radushkevich model indicated physisorption, while the kinetics study suggested a pseudo-second-order reaction. Thermodynamic parameters indicated adsorption was spontaneous. In aqueous solutions, phosphate hindered As removal more than the any other ions. Regeneration studies showed a 23.0% and 21.1% recovery for arsenite and arsenate, respectively, indicating limited leaching under both acidic and alkaline conditions. The absorptive capacity of C. fistula biomass for arsenic removal was compared with a number of other reported biosorbents and was found to be considerably efficient.

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Section: Introductionmentioning

confidence: 99%

Adsorption of As (III) and As (V) from aqueous solution by modified Cassia fistula (golden shower) biochar

et al. 2018

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“…The situation in Gaza is different where much higher chloride and sulphate concentrations have been reported [18], mainly due to seawater intrusion. Since groundwater in the West Bank is aerobic, rather low sulphate concentrations cannot be attributed to inhibition of sulphide oxidation [1,35]. Indeed, chloride and sulphate are abundant in sedimentary rocks [33].…”

Section: Sulphatementioning

confidence: 99%

Groundwater Quality of Drinking Water Wells in the West Bank, Palestine

Mahmoud

Zayed

Petrus̆evski

2022

Water

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Groundwater, the main drinking water source in the West Bank, is highly vulnerable to pollution given the karstic nature of the aquifer. This study was aimed at screening the quality of groundwater used for water supply, in terms of physicochemical and microbiological properties, and heavy metals concentrations. Attention was given to groundwater chemistry, using piper and Durov diagrams, to assess potent impact of pollution on groundwater. Twenty-nine groundwater samples from selected wells, representing the different groundwater fields in the West Bank, were collected and analyzed. The results revealed that the concentration of the ions and parameters affecting the aesthetic and health related water quality, such as Cl−, Na+, NH4+, TDS, and NO3−, and selected (semi) metals, including Cr, Cu, Fe, Mn, Pb, Cd, and As, are within the limits recommended for drinking water. The dominant cations and anions were in the order of Ca2+ > Na+ > Mg2+ > K+ > NH4+ and HCO3− > Cl− > NO3− > SO42−, respectively. The total average groundwater hardness is approximately 2.1 mmol/L and can be attributed to calcium (approximately 60%) and magnesium. The major ground water types in the West Bank were fresh water (Ca-Mg-HCO3), fresh water mixed with another water type (Ca-Mg-Na-HCO3 or Ca-Mg-HCO3-Cl), and extreme water type (Na-Ca-Mg-HCO3-Cl or Na-Ca-HCO3-Cl) showing high TDS, Cl− and Na+. Signs of pollution, namely elevated levels of nitrate and ammonium, were, however, observed even in some deep wells (>600 m), despite the thick cover of soil, tapping the Lower Ceneomanian confined aquifer.

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“…A detailed review of the health implications of arsenic, mechanism of action on target organs, and cancers can be found elsewhere [76] . A study at Gangetic plain region of Jharkhand, India shows that villagers are particularly at high health risk due to As contamination in the groundwater [77] . The health implications of As may be also associated with other gastrointestinal issues with mental disability, breathlessness, loss of appetite, anemia, and constipation 35 .Incidence of skin cancer was reported in US populations even with low chronic exposure of As <10 μg L −1 [78] .…”

Section: Overview Of As Contamination In Watermentioning

confidence: 99%

“…[76] A study at Gangetic plain region of Jharkhand, India shows that villagers are particularly at high health risk due to As contamination in the groundwater. [77] The health implications of As may be also associated with other gastrointestinal issues with mental disability, breathlessness, loss of appetite, anemia, and constipation 35 .Incidence of skin cancer was reported in US populations even with low chronic exposure of As < 10 μg L À 1 . [78] Apart from skin cancer, risks of lung, bladder, and kidney cancer have been also associated with the exposure of low levels of arsenic in drinking water.…”

Section: Overview Of As Contamination In Watermentioning

confidence: 99%

Metal‐Loaded Biochar for the Removal of Arsenic from Water: A Critical Review on Overall Effectiveness, Governing Mechanisms, and Influential Factors

et al. 2022

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Arsenic (As) contamination in water sources is a serious threat to safe drinking water afflicting many developed and developing nations. Among the different water treatment techniques, arsenic removal using metal‐loaded biochar has gained considerable interest as an efficient environmentally sustainable adsorbent. This review critically focuses on an in‐depth analysis of different adsorption mechanisms and various physicochemical properties such as pH, surface area and surface charge, porosity, and functional groups of the metal‐loaded biochar that are significant for As adsorption, which has not been previously described. It centers on addressing the overall effectiveness, governing mechanisms, and influential factors of metal‐loaded biochars for As removal from the aqueous medium. Special consideration on oxidation of arsenite to arsente and its removal was given. The oxidation processes are also effective in reducing arsenic toxicity by oxidation of arsenite to arsenate. A comprehensive insight into the utility of biochar for As removal for future field applications of biochar is delineated.

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Groundwater Arsenic Contamination and Potential Health Risk Assessment of Gangetic Plains of Jharkhand, India

Cited by 68 publications

References 30 publications

Adsorption of As (III) and As (V) from aqueous solution by modified Cassia fistula (golden shower) biochar

Adsorption of As (III) and As (V) from aqueous solution by modified Cassia fistula (golden shower) biochar

Groundwater Quality of Drinking Water Wells in the West Bank, Palestine

Metal‐Loaded Biochar for the Removal of Arsenic from Water: A Critical Review on Overall Effectiveness, Governing Mechanisms, and Influential Factors

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