Estimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water content

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dc.contributorPetrología Aplicadaes_ES
dc.contributorIngeniería Hidráulica y Ambiental (INGHA)es_ES
dc.contributor.authorBenavente, David-
dc.contributor.authorValdes-Abellan, Javier-
dc.contributor.authorPla, Concepción-
dc.contributor.authorSanz-Rubio, Enrique-
dc.contributor.otherUniversidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambientees_ES
dc.contributor.otherUniversidad de Alicante. Departamento de Ingeniería Civiles_ES
dc.identifier.citationJournal of Environmental Radioactivity. 2019, 208-209: 105992. doi:10.1016/j.jenvrad.2019.105992es_ES
dc.identifier.issn0265-931X (Print)-
dc.identifier.issn1879-1700 (Online)-
dc.description.abstractRadon is a natural source of radioactivity and it can be found in all soils and rocks in the Earth. The presence of radon gas in indoor environments implies a serious risk for human health, already listed as carcinogenic by the World Health Organization. The most relevant methods to infer the risk for radon exposure are based on soil radon concentration and gas permeability that describe the effective radon movement in the soil. However, they neglect crucial soil properties and water content in soil, which can affect greatly soil permeability to gases. Additionally, soil permeability measurement remains expensive, difficult and time-consuming. In this paper we show a new and simple methodology to infer radon risk based on Rosetta3 pedotransfer function as well as soil texture and water content. We also determine the influence of soil texture both on the gas permeability variation in dependence on water content and on the parameter n of the van Genuchten –Mualem model, which establishes the shape of the relative permeability curves. We show that radon risk exposure may change importantly for the same soil with different soil water contents. We finally apply and validate the proposed method using radon permeability data from the Canadian component of the North American Soil Geochemical Landscapes Project (NASGLP). Results highlight that the proposed methodology provides reliable estimations of the gas permeability and reveal that the presence of water content may cross the boundary between two radon risk categories, and consequently, may change the radon risk category to safer situations.es_ES
dc.description.sponsorshipThis work was supported by the Spanish Government [grant number RTI2018-099052-B-I00] and the University of Alicante [grant number GRE17-12].es_ES
dc.rights© 2019 Published by Elsevier Ltd.es_ES
dc.subjectRadon riskes_ES
dc.subjectSoil propertieses_ES
dc.subjectGas permeabilityes_ES
dc.subjectSoil water contentes_ES
dc.subject.otherPetrología y Geoquímicaes_ES
dc.subject.otherIngeniería Hidráulicaes_ES
dc.titleEstimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water contentes_ES
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