Probabilistic human health risk assessment associated with fluoride and arsenic co-occurrence in drinking water from the metropolitan area of San Luis Potosí, Mexico
| Autor: | José A. Varela-Silva, Juan C. Fernández-Macías, Iván N. Pérez-Maldonado, Sandra T. Orta-García, Ángeles C. Ochoa-Martínez |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
medicine.medical_specialty 010504 meteorology & atmospheric sciences Population chemistry.chemical_element 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Risk Assessment Arsenic chemistry.chemical_compound Fluorides Environmental health medicine Humans Cities education Child Mexico 0105 earth and related environmental sciences General Environmental Science education.field_of_study Health risk assessment Public health Drinking Water General Medicine Pollution Metropolitan area chemistry Environmental science Risk assessment Fluoride Groundwater Environmental Monitoring |
| Zdroj: | Environmental monitoring and assessment. 192(11) |
| ISSN: | 1573-2959 |
| Popis: | A major public health concern in Mexico is the natural contamination of groundwater with fluoride and arsenic. Therefore, this work aimed to evaluate the magnitude of human health risk after determining fluoride and arsenic concentrations in groundwater samples (n = 50) from the Metropolitan area of the city of San Luis Potosi, Mexico. Fluoride levels in water were determined via a potentiometric method using an ion-selective electrode. Arsenic concentrations in water samples were determined with an Atomic Absorption technique. Subsequently, a probabilistic health risk assessment was developed (Monte Carlo Analysis). Fluoride levels in water ranged from 0.20 to 3.50 mg/L. For arsenic, the mean level found in the assessed water samples was 15.5 ± 5.50 μg/L (range: 2.50–30.0 μg/L). In addition, when the probabilistic health risk assessment was completed, a mean HI (cumulative hazardous index) of higher than 1 was detected, indicating a high NCR (non-carcinogenic risk) for children and adults. According to the results found in this study, exposure protection campaigns are imperative in the Metropolitan area of the city of San Luis Potosi, Mexico, to successfully diminish exposure to arsenic and fluoride and, as a consequence, decrease the NCR in the population living in that region of Mexico. |
| Databáze: | OpenAIRE |
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