Author
Listed:
- Carmen González-Horta
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- Lourdes Ballinas-Casarrubias
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- Blanca Sánchez-Ramírez
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- María C. Ishida
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- Angel Barrera-Hernández
(Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Mexico D. F. 07360, Mexico)
- Daniela Gutiérrez-Torres
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- Olga L. Zacarias
(Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, Mexico)
- R. Jesse Saunders
(Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7461, USA)
- Zuzana Drobná
(Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7461, USA)
- Michelle A. Mendez
(Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7461, USA)
- Gonzalo García-Vargas
(Facultad de Medicina, Universidad Juárez del Estado de Durango (UJED), Gómez Palacio, Durango 35050, Mexico)
- Dana Loomis
(IARC Monographs Section, IARC/WHO, Lyon Cedex 69372, France)
- Miroslav Stýblo
(Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7461, USA)
- Luz M. Del Razo
(Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Mexico D. F. 07360, Mexico)
Abstract
Inorganic arsenic (iAs) and fluoride (F − ) are naturally occurring drinking water contaminants. However, co-exposure to these contaminants and its effects on human health are understudied. The goal of this study was examined exposures to iAs and F − in Chihuahua, Mexico, where exposure to iAs in drinking water has been associated with adverse health effects. All 1119 eligible Chihuahua residents (>18 years) provided a sample of drinking water and spot urine samples. iAs and F − concentrations in water samples ranged from 0.1 to 419.8 µg As/L and from 0.05 to 11.8 mg F − /L. Urinary arsenic (U-tAs) and urinary F − (U-F − ) levels ranged from 0.5 to 467.9 ng As/mL and from 0.1 to 14.4 µg F − /mL. A strong positive correlation was found between iAs and F − concentrations in drinking water ( r s = 0.741). Similarly, U-tAs levels correlated positively with U-F − concentrations ( r s = 0.633). These results show that Chihuahua residents exposed to high iAs concentrations in drinking water are also exposed to high levels of F − , raising questions about possible contribution of F − exposure to the adverse effects that have so far been attributed only to iAs exposure. Thus, investigation of possible interactions between iAs and F − exposures and its related health risks deserves immediate attention.
Suggested Citation
Carmen González-Horta & Lourdes Ballinas-Casarrubias & Blanca Sánchez-Ramírez & María C. Ishida & Angel Barrera-Hernández & Daniela Gutiérrez-Torres & Olga L. Zacarias & R. Jesse Saunders & Zuzana Dro, 2015.
"A Concurrent Exposure to Arsenic and Fluoride from Drinking Water in Chihuahua, Mexico,"
IJERPH, MDPI, vol. 12(5), pages 1-15, April.
Handle:
RePEc:gam:jijerp:v:12:y:2015:i:5:p:4587-4601:d:48719
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