Measurement of Radon 222 Concentrations in the Basements of the New Engineering Building from the Pontificia Universidad Católica del Perú

Rojas Jhonny¹, Bertín Perez¹, Patrizia Pereyra^1, , María Elena Lopez¹ and Luis Vilcapoma¹

¹Sección Física, Pontificia Universidad Católica del Perú, Lima-Perú

Cite this paper:
Rojas Jhonny, Bertín Perez, Patrizia Pereyra, María Elena Lopez and Luis Vilcapoma. Measurement of Radon 222 Concentrations in the Basements of the New Engineering Building from the Pontificia Universidad Católica del Perú. International Journal of Physics. 2016; 4(3):55-58. doi: 10.12691/ijp-4-3-2

Abstract

Historical data of 222 Radon concentrations were collected in the building of Engineering PUCP recently built with eleven levels (eight on grades and three basements). The measurements were made in the three basement levels of the building. The first results of the history of 222 Radon concentrations in the basements of this building used as a parking lot are shown. The monitoring started the first week it was opened to the public. As nuclear track detectors we use the polymer cellulose nitrate (LR115 - Type 2). Changes in the concentration of 222 Radon registered, are linked into account aspects such as the use of exhaust extractors, increase in the number of vehicles, construction time and seasonal parameters. The results show adequate levels of 222 Radon concentration in all basements, the highest value is 97, 41 Bq/ m³ at the deepest level, the third.

Keywords:
radon new building basements LR-115-Type 2

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Figures

References:

[1]	F. Goded, V. Serradell., “Teoría de Reactores y Elementos de Ingeniería Nuclear”, Tomo I, 3° Edición, 1975.
[2]	World Health Organization, “SELECTED POLLUTANTS”, 2010.
[3]	World Health Organization, “WHO HANDBOOK ON INDOOR RADON”, 2009.
[4]	ICRP, 1987. Lung Cancer Risk from Exposures to Radon Daughters. ICRP Publication 50.
[5]	S Darby, D Hill, A Auvinen, J M Barros-Dios, H Baysson, F Bochicchio, et al., “A Radon in Homes and Risk of Lung Cancer: Collaborative Analysis of Individual Data from 13 European Case-control Studies”, British Medical Journal, 2005 January 29, 330 (7485): 223.
[6]	D Krewski, JH Lubin, JM Zeilinski, M Alavanja, VS Catalan, RW Field, et al.,”A Residential Radon and Risk of Lung Cancer: A Combined Analysis of 7 North American Case-control Studies”., Epidemiology, 2005 March; 16 (2):137-45.
[7]	“Radon Risk If You've Never Smoked”, http://www.epa.gov/radon/healthrisks.html. 1999-2001.
[8]	Espinosa, G., “Trazas Nucleares en Sólidos”, UNAM. México, 1994.
[9]	R.L. Fleischer, P.B. Price, R.M. Walker, Nuclear Tracks in Solids, University of California Press, Berkley, 1975.
[10]	D. Nikezic 1, K.N. Yu., “Profiles and parameters of tracks in the LR115 detector irradiated with alpha particles”, Nuclear Instruments and Methods in Physics Research B 196 (2002) 105-112.
[11]	Pereyra P., “Aplicación de la técnica de huellas nucleares en dosimetría de partículas alfa”, Tesis de bachiller de la Pontificia Universidad Católica del Perú., 1991.
[12]	KP Eappen and YS Mayya Calibration factors for lr-115 (type-ii) based radon thoron discrimination dosimeter. Radiation Measurements, 38(1):5-17, 2004.