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Extended Abstract

Exhalation Rate Study of Thoron in Some Building Materials of the Iberian Peninsula

1
Departamento de Química Analítica, Universidad de Extremadura, Av. de Elvas, s/n, 06006 Badajoz, Spain
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Departamento de Física Aplicada, Universidad de Extremadura, Av. de la Universidad, s/n, 10005 Cáceres, Spain
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Centro de Ciências e Tecnologias Nucleares, Estrada Nacional 10, ao km 139,7, 2695-066 Bobadela LRS, Portugal
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Laboratório de Proteção e Segurança Radiológica, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao km 139,7, 2695-066 Bobadela LRS, Portugal
*
Author to whom correspondence should be addressed.
Presented at Environment, Green Technology and Engineering International Conference (EGTEIC 2018), Caceres, Spain, 18–20 June 2018.
Proceedings 2018, 2(20), 1294; https://doi.org/10.3390/proceedings2201294
Published: 17 October 2018
Thoron isotope has been growing in importance in the last years because, despite of its short half-life, can also contribute in the development of lung cancer. In this work, we assess the thoron massic exhalation rate and emanation factor of some building materials commonly used in the Iberian Peninsula. A continuous thoron monitor was used to measure the thoron activity growth as a function of time. To calculate the emanation factor, the activity of thoron radionuclide mother element (Th-232) by gamma spectrometry was employed. The exhalation rate values range from 0.0007 to 0.040 Bq•kg−1•s−1 for gypsum and Gris Quintana granite, respectively and the emanation factor range from 0.2 to 4.8% for Gran Beige and Gris Quintana granites, respectively. Ranges of results of all these parameters are in good agreement with the values reported by other authors for building materials of different countries.
Keywords: thoron; building materials; massic exhalation rate; emanation factor thoron; building materials; massic exhalation rate; emanation factor
MDPI and ACS Style

Frutos-Puerto, S.; Pinilla-Gil, E.; Miró, C.; Andrade, E.; Reis, M.; José Madruga, M. Exhalation Rate Study of Thoron in Some Building Materials of the Iberian Peninsula. Proceedings 2018, 2, 1294. https://doi.org/10.3390/proceedings2201294

AMA Style

Frutos-Puerto S, Pinilla-Gil E, Miró C, Andrade E, Reis M, José Madruga M. Exhalation Rate Study of Thoron in Some Building Materials of the Iberian Peninsula. Proceedings. 2018; 2(20):1294. https://doi.org/10.3390/proceedings2201294

Chicago/Turabian Style

Frutos-Puerto, Samuel, Eduardo Pinilla-Gil, Conrado Miró, Eva Andrade, Mario Reis, and María José Madruga. 2018. "Exhalation Rate Study of Thoron in Some Building Materials of the Iberian Peninsula" Proceedings 2, no. 20: 1294. https://doi.org/10.3390/proceedings2201294

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