Fluoride hydrogeochemistry and bioavailability in groundwater and soil of an endemic fluorosis belt, central Iran

Dehbandi, Reza; Moore, Farid; Keshavarzi, Behnam; Abbasnejad, Ahmad

doi:10.1007/s12665-017-6489-9

Cited by 33 publications

(8 citation statements)

References 46 publications

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“…Rahman et al [47] reported that F concentration has a positive correlation with electrical conductivity (EC), total dissolved solids (TDS), and the concentrations of Br, PO 4 3-, and SO 4 2-. In contrast, according to a study conducted by Dehbandi et al [48] in central Iran, results revealed that F concentration in the groundwater has a negative correlation with pH and HCO 3 -. According to the studies, physicochemical parameters in water affect fluoride concentration in water.…”

Section: Showt Countymentioning

confidence: 73%

Northwest of Iran as an endemic area in terms of fluoride contamination: a case study on the correlation of fluoride concentration with physicochemical characteristics of groundwater sources in Showt

Yousefi¹,

Moghaddam²,

Nasab³

et al. 2019

DWT

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a b s t r a c tFluoride in drinking water is an important chemical species with regard to public health considerations, although a fluoride concentration of about 1.5 mg L -1 in drinking water can decrease tooth decay and higher concentrations cause health problems. The concentration of fluoride in water is affected by some chemical characteristics. This study aimed to evaluate the relationship between fluoride and other chemical parameters (pH, Turbidity, EC, TDS, TH, ALK, Cl -, SO 4 2-, NO 3-, NO 2-, Ca 2+ , Mg 2+ , Na + , K + , PO 4 3-) in water bodies located in Showt, West Azerbaijan Province, Iran. Sample preparation and analysis were performed according to standard methods. A wide range of fluoride concentrations was measured in this study (0.0-5.5 mg L -1 ). The results indicated that alkalinity and Na + have a significant positive relationship with fluoride concentrations in water wells. Nevertheless, total hardness (TH) showed an inverse relationship with fluoride concentration. In addition, for a one-unit increase in alkalinity and Na + concentration, the average amount of fluoride in water increased by 0.0028 and 0.16, respectively. Furthermore, for a one-unit increase in total hardness, the average amount of fluoride in water decreased by 0.005. In conclusion, fluoride concentration was affected by numerous factors such as hardness, alkalinity, and Na + concentration. The findings of this study suggest that a suitable treatment of the groundwater is needed in contaminated areas before its use for drinking.

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Section: Showt Countymentioning

confidence: 73%

Northwest of Iran as an endemic area in terms of fluoride contamination: a case study on the correlation of fluoride concentration with physicochemical characteristics of groundwater sources in Showt

Yousefi¹,

Moghaddam²,

Nasab³

et al. 2019

DWT

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“…Recent studies have shown that bicarbonate governs fluoride mobility in some groundwater systems through dissolution/ precipitation reactions with calcium-bearing mineral phases (Dehbandi et al, 2017;Nordstrom, 2022;Nordstrom & Smedley, 2022). These studies suggest that the addition of bicarbonate to systems in solubility equilibrium with fluorite will drive the precipitation of calcite and dissolution of fluorite according to Le Châtelier's principle, thereby increasing fluoride concentrations (and likely bioavailability) in solution.…”

Section: Alkalinity Is Not a Tmf For Fluoridementioning

confidence: 99%

Response to Letter to the Editor on Parker et al., 2022, “Development of Fluoride Protective Values for Aquatic Life Using Empirical Bioavailability Models”

Parker¹,

Wilkes²,

Long³

et al. 2022

Enviro Toxic and Chemistry

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“…Fluoride in soils is primarily found in residual and water-soluble fractions, and it had little to do with the available binding sites. As a result, fluoride in soils is mobile, making it easily leachable into groundwater [125]. The fluoride presence is relatively high in falling groundwater tables because of possible direct evaporation of groundwater from wells.…”

Section: Sources and Geochemistry Of Fluoride In Environmental Compartmentsmentioning

confidence: 99%

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

et al. 2021

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Fluoride is widely found in soil–water systems due to anthropogenic and geogenic activities that affect millions worldwide. Fluoride ingestion results in chronic and acute toxicity, including skeletal and dental fluorosis, neurological damage, and bone softening in humans. Therefore, this review paper summarizes biological processes for fluoride remediation, i.e., bioaccumulation in plants and microbially assisted systems. Bioremediation approaches for fluoride removal have recently gained prominence in removing fluoride ions. Plants are vulnerable to fluoride accumulation in soil, and their growth and development can be negatively affected, even with low fluoride content in the soil. The microbial bioremediation processes involve bioaccumulation, biotransformation, and biosorption. Bacterial, fungal, and algal biomass are ecologically efficient bioremediators. Most bioremediation techniques are laboratory-scale based on contaminated solutions; however, treatment of fluoride-contaminated wastewater at an industrial scale is yet to be investigated. Therefore, this review recommends the practical applicability and sustainability of microbial bioremediation of fluoride in different environments.

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Fluoride hydrogeochemistry and bioavailability in groundwater and soil of an endemic fluorosis belt, central Iran

Cited by 33 publications

References 46 publications

Northwest of Iran as an endemic area in terms of fluoride contamination: a case study on the correlation of fluoride concentration with physicochemical characteristics of groundwater sources in Showt

Northwest of Iran as an endemic area in terms of fluoride contamination: a case study on the correlation of fluoride concentration with physicochemical characteristics of groundwater sources in Showt

Response to Letter to the Editor on Parker et al., 2022, “Development of Fluoride Protective Values for Aquatic Life Using Empirical Bioavailability Models”

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

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