Study, measurement and mitigation of radon activity concentration in the School of Computer Science of A Coruña in the North West of Spain

A study of the radon activity concentration was carried out at the School of Computer Science of 'Universidade da Coruña' (UDC, Spain). For this purpose, building location, the type of soil and the construction materials were analysed. Subsequently, the radon activity concentration was det...

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Bibliographic Details
Published in:Journal of radiological protection 2021-12, Vol.41 (4), p.1366-1380
Main Authors: Arias-Ferreiro, Goretti, Otero-Pazos, A, Ares-Pernas, Ana, Fernández-Ibáñez, I, Rodríguez-Gómez, B A, Calvo-Rolle, J L
Format: Article
Language:English
Subjects:
Air Pollutants, Radioactive - analysis
Air Pollution, Indoor - analysis
Computers
Housing
indoor radon
ionization chamber
mechanical ventilation
Radiation Monitoring
Radon - analysis
Schools
Spain
trace detector
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Summary:A study of the radon activity concentration was carried out at the School of Computer Science of 'Universidade da Coruña' (UDC, Spain). For this purpose, building location, the type of soil and the construction materials were analysed. Subsequently, the radon activity concentration was determined using two different techniques: measurement in situ with an on-site ionization chamber detector (short term) and measurement with trace detectors (long term). Based on the results obtained, and according with the Spanish Law (Spanish Official Bulletin-Boletín Oficial del Estado, of 21 December 2011, IS-33 Instruction), corrective works were performed, consisting on the installation of a forced ventilation system underneath the extent of the suspended floor in order to mitigate the high radon specific activity in the building. Four months and 3 years after the works, new measurements were carried out in order to verify the effectiveness of the new ventilation system, obtaining a decrease of the radon gas values ranging between 87% and 90%, which confirmed long term effectivity.
ISSN:0952-4746
1361-6498
DOI:10.1088/1361-6498/abe170