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Geosciences 2017, 7(1), 12; doi:10.3390/geosciences7010012

Hydrochemistry and 222Rn Concentrations in Spring Waters in the Arid Zone El Granero, Chihuahua, Mexico

1
Natural Resources, Facultad de Zootecnia y Ecologia, Universidad Autónoma de Chihuahua, Periférico Francisco R. Almada km 1, 31415 Chihuahua, Mexico
2
Applied Nuclear Physics, ETSA, Universidad de Sevilla, Avenida Reina Mercedes 2, 41012 Sevilla, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Carlos Alves and Jesus Martinez-Frias
Received: 24 October 2016 / Revised: 25 February 2017 / Accepted: 6 March 2017 / Published: 11 March 2017
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Abstract

Water in arid and semi-arid environments is characterized by the presentation of complex interactions, where dissolved chemical species in high concentrations have negative effects on the water quality. Radon is present in areas with a high uranium and radium content, and it is the main contributor of the annual effective dose received by humans. The objective of this study was to evaluate concentrations of 222Rn and the water quality of spring waters. Water was classified as calcium sulfated and sodium sulfated. Most of the water samples with high radon concentrations presented higher concentrations of sulfates, fluorides, and total dissolved solids. 222Rn concentrations may be attributed to possible enhancement of 226Ra due to temperature and salinity of water, as well as evaporation rate. In 100% of the sampled spring waters the 222Rn levels exceeded the maximum acceptable limit which is proposed by international institutions. Aridity increases radiological risk related to 222Rn dose because spring waters are the main supply source for local populations. The implementation of environmental education, strategies, and technologies to remove the contaminants from the water are essential in order to reduce the health risk for local inhabitants. View Full-Text
Keywords: dissolved chemical species; 222Rn; springs; arid zones; Chihuahua dissolved chemical species; 222Rn; springs; arid zones; Chihuahua
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MDPI and ACS Style

Rentería-Villalobos, M.; Covarrubias-Muños, A.; Pinedo-Álvarez, A.; Manjon-Collado, G. Hydrochemistry and 222Rn Concentrations in Spring Waters in the Arid Zone El Granero, Chihuahua, Mexico. Geosciences 2017, 7, 12.

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