Geochemical sources, hydrogeochemical behavior, and health risk assessment of fluoride in an endemic fluorosis area, central Iran

Dehbandi, Reza; Moore, Farid; Keshavarzi, Behnam

doi:10.1016/j.chemosphere.2017.11.021

Cited by 135 publications

(40 citation statements)

References 92 publications

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“…Table 2 presents the values of

for different metals obtained in this study [9] , [10] , [15] . Several literatures have established that a risk is very likely when the

is equal or greater than unity while the probability of a risk not occurring is postulated when

is less than unity [16] , [17] , [18] , [19] . These values are tabulated in Table 3a , Table 3b , Table 4a , Table 4b , Table 5a , Table 5b , Table 6a , Table 6b , Table 7a , Table 7b (a)–(b) for all the metals obtained in this study.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Computation of human health risk in surface water in Ado-Odo Ota, Ogun State, Nigeria

et al. 2018

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Heavy metals find their way into surface and groundwater due to degrading environmental conditions, and as such consistent monitoring to avoid the adverse health implications associated with the consumption of polluted water is required. This study examined the concentrations for Lead (Pb), Nickel (Ni), Zinc (Zn), Chromium (Cr), Cadmium (Cd), Copper (Cu) and Arsenic (As) in the Surface water of River Balogun in Ota, Ogun State, Nigeria during the wet season and estimated the human health risk resulting from prolonged consumption by children and adult of dissimilar age groups without treatment. Although there were persistent occurrence of Nickel (Ni), Copper (Cu), Zinc (Zn) and Arsenic (As) in all stations sampled, the health risk assessment conducted revealed that both population groups are more likely to be affected by high concentration levels of Arsenic than any other Heavy metal present.

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“…Table 2 presents the values of

for different metals obtained in this study [9] , [10] , [15] . Several literatures have established that a risk is very likely when the

is equal or greater than unity while the probability of a risk not occurring is postulated when

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Computation of human health risk in surface water in Ado-Odo Ota, Ogun State, Nigeria

et al. 2018

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“…Interestingly, high-fluoride groundwater belongs to Na + -Cl − -, Ca 2+ -Mg 2+ -Cl − -and Na + -HCO 3 − -Cl − -type waters. These water had high EC (1535 µS/cm) and high TDS (983 mg/L), suggesting a major role of water-rock interaction and long residence time [47,[51][52][53].…”

Section: The Dominant Water Typesmentioning

confidence: 99%

Hydrogeochemistry and fluoride contamination in the hard rock terrain of central Telangana, India: analyses of its spatial distribution and health risk

Adimalla

Qian

2019

SN Appl. Sci.

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Groundwater is the primary source for drinking uses in the hard rock terrain of central Telangana, India, where most of the people rely on it for daily uses. Therefore, this study was carried out to comprehend the fluoride contamination and its associated health risk assessment to local dwellers. For this study, 54 groundwater samples were collected from bore wells and hand pumps in the study region and were analysed for fluoride and other physicochemical parameters. The results indicated by statistical mean values of Na + , Ca 2+ , Mg 2+ and K + are 182.14, 59.79, 23.90 and 3.74 mg/L, respectively, while HCO 3 2− , Cl − , SO 4 2− and NO 3 − are 236.1, 230.8, 167.7 and 81.9 mg/L, respectively. The fluoride concentration ranged from 0.8 to 4.2 mg/L, with a mean of 2.21 mg/L. Eighty-one percent of the groundwater samples exceeded the World Health Organization's water quality limit of 1.5 mg/L for fluoride. Piper trilinear diagram (PTD) signifies that groundwater quality in the study region is characterized by Na +-Cl − , Ca 2+-Mg 2+-Cl − and Na +-HCO 3 −-Cl − hydrochemical water types. Gibbs diagrams indicate that all the major ion chemistry of the groundwater in the study region is controlled by rockwater interactions, while evaporation plays a minor role. The health risk assessment results revealed that the associated hazard quotient (HQ) for the age range of 6 to 12 months within about 100% of the study area exceeded the acceptable HQ limits of 1. Furthermore, the HQ for age categories 6-11 years, 11-16 years and 16-18 years within 96.2, 68.5 and 50%, respectively, of the study locations were larger than 1. Results also indicate that age group 6 to 12 months was most prone to health risks in the study region. Therefore, in the study region, people should be taken necessary actions to abolish the groundwater contamination to protect the local dweller's health.

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“…[10][11][12][13][14] It is sourced from the interaction of the groundwater with uoride-bearing minerals 15,16 and its concentration depends upon the physicochemical parameters of the groundwater and other factors and processes, such as evapotranspiration, anion exchange, the solubility of uoride-bearing minerals and precipitation. [17][18][19][20] Higher concentrations (>1.5 mg l À1 ) of this ion of uorine (halogen group) give rise to dental uorosis and skeletal uorosis. 21,22 It has been reported that about 400 million people are exposed to articially uoridated water.…”

Section: Introductionmentioning

confidence: 99%

“…[25][26][27][28][29][30] About 66 million people in India living in 250 common pathways (intake and dermal) as per the USEPA health risk model. 18,22,[37][38][39] The present study was carried out to (i) identify the major geochemical processes and anthropogenic sources of F À from hydrogeochemical parameters, (ii) delineate uoridevulnerable zones using spatial distribution maps, (iii) rank the groundwater quality for drinking utilities using the entropy water quality index (EWQI) and (iv) assess the human health risk of uoride-enriched groundwater from oral and dermal intake pathways in seven age groups (i.e., 5-12 months, 5-13 years, 14-16 years, 17-20 years, 21-23 years, $23 years and >65 years) in a semi-arid part of South India, with the principal objective of effective water utilization and groundwater protection.…”

Section: Introductionmentioning

confidence: 99%

The effects of geochemical processes on groundwater chemistry and the health risks associated with fluoride intake in a semi-arid region of South India

Karunanidhi¹,

Aravinthasamy²,

Deepali

et al. 2020

RSC Adv.

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Geochemical sources, hydrogeochemical behavior, and health risk assessment of fluoride in an endemic fluorosis area, central Iran

Cited by 135 publications

References 92 publications

Computation of human health risk in surface water in Ado-Odo Ota, Ogun State, Nigeria

Computation of human health risk in surface water in Ado-Odo Ota, Ogun State, Nigeria

Hydrogeochemistry and fluoride contamination in the hard rock terrain of central Telangana, India: analyses of its spatial distribution and health risk

The effects of geochemical processes on groundwater chemistry and the health risks associated with fluoride intake in a semi-arid region of South India

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