Radon concentrations in ground and drinking water in the state of Chihuahua, Mexico

Villalba, Lourdes; Sujo, L. Colmenero; Montero-Cabrera, M. E.; Jiménez, A.; Villalobos, M. Rentería; Mendoza, Christina; Tenorio, L.A. Jurado; Rangel, I. Dávila; Peraza, E. F. Herrera

doi:10.1016/j.jenvrad.2004.08.005

Cited by 36 publications

(14 citation statements)

References 6 publications

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“…Several recent studies raise concern about water quality, particularly in Chihuahua. Villalba et al (2005) find that 50% of the sampled wells and 48% of the tap water samples (in a number of cities including Parral) in this Mexican state exhibited radon concentration above the safe standard (11 Bq/L) set by United States Environmental Protection Agency (US EPA). More generally, the OECD (2006) has stressed the need for increasing current waterrelated investments and management efforts in Mexico to ensure better treatment of drinking water and its supply.…”

Section: Background and Current Water Supply System In Parralmentioning

confidence: 79%

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Willingness to pay for safe drinking water: Evidence from Parral, Mexico

Vásquez

Mozumder

Hernández-Arce

et al. 2009

Journal of Environmental Management

143

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Section: Background and Current Water Supply System In Parralmentioning

confidence: 79%

“…The underlying aquifers are porous and permeable, and recharged by scarce precipitation (Villalba et al, 2005). The water supply system in Parral is administered by the Municipal Board of Water and Sanitation which covers most of Parral's inhabitants.…”

Section: Background and Current Water Supply System In Parralmentioning

confidence: 99%

Willingness to pay for safe drinking water: Evidence from Parral, Mexico

Vásquez

Mozumder

Hernández-Arce

et al. 2009

Journal of Environmental Management

143

View full text Add to dashboard Cite

“…Toutain et al [32] used radon as a precursor, or an event indicator, for earthquakes and volcanic activity. The migration distance of radon from underground strata to the surface depends on different lithological characters, e.g., the vertical migration distance in homogeneous sand is 360 m to 420 m [33,34]. In addition, the increased phenomenon of radon concentration was observed in surface soil above coal spontaneous combustion areas at 400 m depths in China [35].…”

Section: The Mechanism Of Radon Migrationmentioning

confidence: 99%

On-Site Radon Detection of Mining-induced Fractures from Overlying Strata to the Surface: A Case Study of the Baoshan Coal Mine in China

Zhang

et al. 2014

Energies

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Large-scale longwall mining of shallow coal seams may cause mining-induced fractures that can project completely through to the surface. This could lead to a series of mine safety and environmental issues, further deteriorating the already fragile ecological environment in the Western mining areas in China. Therefore, an accurate and effective understanding of the spatiotemporal evolution law of mining-induced fractures in overlying strata and its relationship to upper aquifers is critical. In this paper, the application of the geophysical-chemical properties of radon in mining engineering is explored as a potential solution to the shortcomings of existing surveying methods. A radioactive measurement method is proposed for the detection of the development of mining-induced fractures from overlying strata to the surface in the Baoshan Coal Mine (BCM). The on-site test indicated that the first weighting step is approximately 60 m, the average periodic weighting step is approximately 20 m, and the influence coverage of the advanced abutment pressure is approximately 30 m. The presented method could be used OPEN ACCESSEnergies 2014, 7 8484 as an indirect technical support to increase the safety of coal mining by acting as a simple, fast, and reliable method of detecting mining-induced fractures in overlying strata.

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“…Because of this, it is considered of vital importance to evaluate the levels of 222 Rn in the environment. Previous results have shown that the concentrations of uranium, radium, and radon in surface and ground water, evaluated in several locations in the state of Chihuahua, are mainly elevated in the cities of Aldama and Chihuahua [7][8][9][10][11]. In addition, the water in the thermal springs of San Diego de Alcalá, close to the influx of the river Chuvíscar with the river Conchos, has been observed to have a high activity concentration of dissolved 226 Ra, with levels of 5.6 Bq/L [7].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 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 222 Rn 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. 222 Rn concentrations may be attributed to possible enhancement of 226 Ra due to temperature and salinity of water, as well as evaporation rate. In 100% of the sampled spring waters the 222 Rn levels exceeded the maximum acceptable limit which is proposed by international institutions. Aridity increases radiological risk related to 222 Rn 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.

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Radon concentrations in ground and drinking water in the state of Chihuahua, Mexico

Cited by 36 publications

References 6 publications

Willingness to pay for safe drinking water: Evidence from Parral, Mexico

Willingness to pay for safe drinking water: Evidence from Parral, Mexico

On-Site Radon Detection of Mining-induced Fractures from Overlying Strata to the Surface: A Case Study of the Baoshan Coal Mine in China

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

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