Preliminary human health risk assessment of arsenic and fluoride in tap water from Zacatecas, México
| Autor: | Monica I. Martinez-Acuna, Jorge Alejandro Alegría-Torres, Marisa Mercado-Reyes, José de Jesús Mejía-Saavedra |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Fluorosis Dental chemistry.chemical_element 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Risk Assessment Arsenic Toxicology 03 medical and health sciences chemistry.chemical_compound Fluorides Tap water Water Supply medicine Ecotoxicology Humans Groundwater Mexico 0105 earth and related environmental sciences General Environmental Science Pollutant Health risk assessment Drinking Water General Medicine medicine.disease Pollution 030104 developmental biology chemistry Environmental chemistry Risk assessment Fluoride Dental fluorosis Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental monitoring and assessment. 188(8) |
| ISSN: | 1573-2959 |
| Popis: | Zacatecas state is located in the central area of Mexico, where the underground water contains elevated quantities of natural arsenic and fluoride. In order to estimate health risk associated with human exposure to these pollutants, tap water samples from the southern-central region of the state were analyzed. Ninety percent of the samples exceeded the levels of arsenic established by the World Health Organization (WHO) of 0.01 mg/L and 43 % exceeded the limit established by the NOM-127-SSA1(1) of 0.025 mg/L. Forty-three percent of the samples had fluoride levels above the Mexican regulation limit of 1.5 mg/L (NOM-127-SSA1). We used WHO and EPA's health risk assessment method, we estimated 80 % of the inhabitants of sites studied could be exposed to arsenic levels higher than those recommended by EPA and the WHO, 22 % could be exposed to fluoride levels higher than those recommended by EPA, and 16 % of the local population may be in risk of suffering dental fluorosis. |
| Databáze: | OpenAIRE |
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