Fluoride contamination in groundwater resources in the southern Iran and its related human health risks

Dehghani, Mohammad Hadi; Zarei, Ahmad; Yousefi, Mahmood; Asghari, Farzaneh Baghal; Haghighat, Gholam Ali

doi:10.5004/dwt.2019.23993

Cited by 93 publications

(25 citation statements)

References 34 publications

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“…However, the values of longitudinal dispersivity (α L ) used in the present study for WGB adsorbent was calculated using the Eq. (10) [41]: (10) Where: L is the length of the flow path (cm). Tortuosity is a measure of the influence of water molecules flow path in porous media.…”

Section: Longitudinal Dispersion Coefficient and Tortuositymentioning

confidence: 99%

“…According to WHO, the acceptable level of fluoride in safe drinking water is ranged from 0.5 to 1.0 mg/L [5][6][7]. Many defluoridation techniques were adapted by several nations in 1930's to investigate the negative effect of excess fluoride in drinking water and work on methods to remove excess fluoride [8][9][10]. The surface adsorption maintains a great place in the research and practice of defluoridation because of its general approachability and feasibility.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and modeling study of water defluoridation using waste granular brick in a continuous up-flow fixed bed

Ali

Ismail

2020

Environmental Engineering Research

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Contamination of surface and groundwater with excessive concentrations of fluoride is of significant health hazard. Adsorption of fluoride onto waste materials of no economic value could be a potential approach for the treatment of fluoride-bearing water. This experimental and modeling study was devoted to investigate for the first the fluoride removal using unmodified waste granular brick (WGB) in a fixed bed running in continuous mode. Characterization of WGB was carried out by FT-IR, SEM, and EDX analysis. The batch mode experiments showed that they were affected by several parameters including contact time, initial pH, and sorbent dosage. The best values of these parameters that provided maximum removal percent (82%) with the initial concentration of F-1 ions (10 mg/L) and agitation speed (200 rpm) were 90 min, 8, and 3 g/100 mL, respectively. The experimental data were found to fit the Freundlich isotherm model. The maximum adsorption capacity of fluoride on WGB was 1.1 mg/g. The continuous mode experiments clearly confirmed the important role of WGB bed in hindering and confining the propagation of the fluoride-loaded plume as well as there was a very good matching (RMSE ≤ 0.0398) with the predicted results obtained by the simulated mathematical model using COMSOL Multiphysics 3.5a software.

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Section: Longitudinal Dispersion Coefficient and Tortuositymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and modeling study of water defluoridation using waste granular brick in a continuous up-flow fixed bed

Ali

Ismail

2020

Environmental Engineering Research

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“…Groundwater is one of the major sources of drinking water specifically in the arid and semi-arid regions on the earth 1 , 2 . Occurrence of fluoride in groundwater has attracted wide attention in the world due to it closely related to human health 3 .…”

Section: Introductionmentioning

confidence: 99%

“…High concentration of fluoride in groundwater is mainly existed in the arid and semi-arid area with high evapotranspiration and low rainfall 1 , 20 . Elevated fluoride in groundwater is primary originated from lasting water–rock interactions and mineral weathering from fluoride bearing minerals such as fluorit, fluor apatite, biotite and phlogopite 9 , 21 , 22 .…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution and potential health risk of fluoride in drinking groundwater sources of Huaibei, Anhui Province

You

Liu

et al. 2021

Sci Rep

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Fluoride enrichment in drinking groundwater at Huaibei leads to potential health risk to the residents. A total of 49 groundwater samples from groundwater sources were collected to evaluate the potential health risk of fluoride ingestion through drinking water for children and adults in Huaibei. Results shown that the average concentration of fluoride in centralized sources is less than that of decentralized sources, which may be attributed to different geological conditions including fluoride-rich minerals, environmental conditions and high fluoride waste discharge. The corresponding health risk value of fluoride in centralized source is lower than that in decentralized one, and the HI values of fluoride in the three exposed groups varied in the same order: infants > children > adults. Infants and children were more sensitive receptors to the non-carcinogenic health hazards of fluoride than adults. Special care should be taken to infants and children for the highly prone to health risk compared to adults.

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“…Al-Sulaiman et al [4] reported that arsenic and fluoride are the most significant inorganic pollutants in groundwater, affecting human health globally. Fluoride is naturally occurring among geochemical sediments, natural water systems, and minerals often passed onto the body chain through drinking water [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Assessment of high fluoride in water sources and endemic fluorosis in the North-Eastern communities of Gombe State, Nigeria

Giwa

Memon

Ahmad

et al. 2021

Environmental Pollutants and Bioavailability

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Fluoride content of drinking water sources in 12 communities in North-Eastern states, Nigeria, was investigation. The fluoride concentration analyses were performed using the SPADNS method according to the standard method for examining water and wastewater. Fluoride concentration was in the range of 0.35-3.46 mg/L in the drinking water sources. Notably, communities with high fluoride content above the World Health Organization (WHO) guideline were observed in Tumu-2 (2.88 mg/L), Lapan (3.46 mg/L), Jalingo (1.79 mg/L), and Kaleh (1.60 mg/L), respectively. The physical survey conducted indicates severe affliction of fluorosis in Lapan communities; (38% dental fluorosis, 27% skeletal fluorosis, 22% dental and skeletal, 13% without fluorosis), thus, demanding to be urgently redressed. Different water de-fluoridation processes, technologies selection, limitations, and strengths that could serve as treatment purposes in diverse conditions were proposed and highlighted to aid relevant authorities in the future implementation of mitigation measures.

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Fluoride contamination in groundwater resources in the southern Iran and its related human health risks

Cited by 93 publications

References 34 publications

Experimental and modeling study of water defluoridation using waste granular brick in a continuous up-flow fixed bed

Experimental and modeling study of water defluoridation using waste granular brick in a continuous up-flow fixed bed

Spatial distribution and potential health risk of fluoride in drinking groundwater sources of Huaibei, Anhui Province

Assessment of high fluoride in water sources and endemic fluorosis in the North-Eastern communities of Gombe State, Nigeria

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