Co-occurrence of arsenic and fluoride in groundwater of semi-arid regions in Latin America: Genesis, mobility and remediation

Alarcón-Herrera, María Teresa; Bundschuh, Jochen; Nath, Bibhash; Nicolli, Hugo; Gutiérrez, Mélida; Gómez, Víctor Manuel Reyes; Nuñez, Daniel Noe Coaguila; Martín-Domínguez, Ignacio R.; Šráček, Ondra

doi:10.1016/j.jhazmat.2012.08.005

Cited by 209 publications

(71 citation statements)

References 42 publications

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“…These authors also have found a strong correlation between As and F, suggesting that the enrichment of As and F is governed by a common mechanism and/or due to a set of aquifer conditions. The sediment geochemical data of 2046 samples from northern Mexico were generated by Alarcon-Herrera et al (2013). The region is surrounded by large basins filled with alluvium, and dominated by a large number of wells.…”

Section: Occurrence Of F and As In Groundwatersmentioning

confidence: 99%

“…NF removes less than 60% of the monovalent ions as opposed to 90% by RO membranes. RO can completely demineralize water with very low or practically no selectivity for monovalent ions but it suffers from high operating pressure, low permeate flux and high energy requirements (Alarcon-Herrera et al, 2013). In particular, fractional defluoridation can be attained by altering the operating variables of the NF process; while simultaneously keeping the required F content in the water.…”

Section: Reverse Osmosis (Ro) and Nanofiltration (Nf)mentioning

confidence: 99%

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Arsenic and fluoride contaminated groundwaters: A review of current technologies for contaminants removal

Jadhav

Bringas

Yadav

et al. 2015

Journal of Environmental Management

418

138

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Section: Occurrence Of F and As In Groundwatersmentioning

confidence: 99%

Section: Reverse Osmosis (Ro) and Nanofiltration (Nf)mentioning

confidence: 99%

Arsenic and fluoride contaminated groundwaters: A review of current technologies for contaminants removal

Jadhav

Bringas

Yadav

et al. 2015

Journal of Environmental Management

418

138

View full text Add to dashboard Cite

“…In recent years, high levels of As concentration have been detected in drinking water sources of El Valle del Guadiana (Arreguín et al 2005, Alarcón et al 2013. One way of controlling the risk is by substituting the use of tap water with As-free bottled water.…”

Section: Introductionmentioning

confidence: 99%

Micronucleus in Exfoliated Buccal Cells of Children From Durango, Mexico, Exposed to Arsenic Through Drinking Water

Guzmán

Salazar²,

Martínez

et al. 2017

Rev. Int. Contam. Ambie.

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Exposure to inorganic arsenic (As) via drinking water in Latin America and Mexico is a growing public health concern that requires rapid methods to assess risk and adverse effects. The measurement of micronucleus frequency (MNf) in oral mucosa is a noninvasive and low-cost method for monitoring the genotoxic damage in exposed populations. Mexican children from Durango city, a zone with high water arsenic concentrations, were selected and assigned to three-risk categories (low, medium, high) based on the use of tap or bottled water. Levels of As in water, urine and MNf, were measured. Results indicate a significant correlation between the groups at risk and the frequency of MNf in children (0.9 ± 1.9 MN, 1.1 ± 1.9, and 2.6 ± 2.2 per 1000 buccal cells, respectively); (r = 0.416; p = 0.001). Which demonstrated that the MNf in oral mucosa is an efficient and low-cost technique for assessing and monitoring DNA damage by exposure to As. This study also provides evidence that the modification of risk factors could reduce health risk.Palabras clave: genotoxicidad, contaminación natural, población vulnerable, riesgos ambientales RESUMEN La exposición a arsénico (As) inorgánico a través del agua de bebida es un problema de salud pública en América Latina y en México que requiere métodos rápidos para evaluar riesgo y efectos adversos. La medición de la frecuencia de micronúcleos (MNf) en mucosa oral es un método no invasivo y de bajo costo para monitorear daño genotóxico en población expuesta a contaminantes ambientales. Para esta investigación, O.D. López Guzmán et al. 282fueron seleccionados niños mexicanos de la ciudad de Durango, una zona con altas concentraciones de As en agua, y asignados en tres categorías de riesgo (baja, media y alta) con base en el uso de agua de la llave o agua embotellada. Se midieron los niveles de As en agua, orina y la MNf. Los resultados indican una correlación significativa entre los grupos de riesgo y la frecuencia de MNf en los niños (0.9 ± 1.9 MN, 1.1 ± 1.9, y 2.6 ± 2.2 por 1000 células bucales, respectivamente); (r = 0.416; p = 0.001). Estos resultados demuestran que la MNf en mucosa oral es una técnica eficiente y de bajo costo para evaluar y monitorear daño al ADN por la exposición a As. Este estudio también provee evidencia de que la modificación de factores de riesgo puede reducir riesgos a la salud.

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“…The Chaco-Pampean plain is the largest one in Latin America and one of the largest geographic units in the world affected by As-contaminated groundwater [10]. In the Chaco plain (north of the ChacoPampean plain), the major source of arsenic in groundwater is chemical weathering of the rocks, and no anthropogenic sources of contamination have been reported [11].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Heavy Metals Concentration in Arsenic Contaminated Groundwater of the Chaco Plain, Argentina

Giménez

Blanes

Buchhamer

et al. 2013

ISRN Environmental Chemistry

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The occurrence and distribution of arsenic and 23 other trace elements have been investigated in groundwater from Comandante Fernández Department in the Central region of Chaco Province, Northern Argentine. The arsenic concentrations samples ranged between 0.7 to 1990 g L −1 ; 91% ( = 45) exceeds the 10 g L −1 World Health Organization (WHO) provisional standard limits for drinking water. Fluorine was detected in 31% of groundwater samples. Furthermore, there was found a significant correlation between As and F ( 2 = 0.50), indicating an association in the prevalence of both elements. In addition, about 78%, 31%, 16%, 13%, and 4.5% of groundwater samples had, respectively, B, Fe, Al, Mn, and Sb exceeding Código Alimentario Argentino (CAA) guideline values. In contrast of the previously values descript, the corresponding to Cr, Be, Ni, Pb, Ag, Se, and Zn were found below the quantification limit. The presence of As and trace elements in groundwater represents an important issue because it can cause a public health problem.

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Co-occurrence of arsenic and fluoride in groundwater of semi-arid regions in Latin America: Genesis, mobility and remediation

Cited by 209 publications

References 42 publications

Arsenic and fluoride contaminated groundwaters: A review of current technologies for contaminants removal

Arsenic and fluoride contaminated groundwaters: A review of current technologies for contaminants removal

Micronucleus in Exfoliated Buccal Cells of Children From Durango, Mexico, Exposed to Arsenic Through Drinking Water

Assessment of Heavy Metals Concentration in Arsenic Contaminated Groundwater of the Chaco Plain, Argentina

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