Time-integrating radon gas measurements in domestic premises: comparison of short-, medium- and long-term exposures

Groves-Kirkby, C.J., Denman, A.R., Crockett, R.G.M, Phillips, P.S., Woolridge, A.C. and Gillmore, G.K. (2006) Time-integrating radon gas measurements in domestic premises: comparison of short-, medium- and long-term exposures. Journal of Environmental Radioactivity, 86(1), pp. 92-109. ISSN (print) 0265-931X

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Abstract

To identify the most applicable technology for the short-term assessment of domestic radon levels, comparative assessments of a number of integrating detector types, including track-etch, electret and activated charcoal were undertaken. Thirty-four unremediated dwellings in a high-radon area were monitored using track-etch detectors exposed for one-month and three-month periods. In parallel, one-week measurements were made in the same homes at one-month intervals, using co-located track-etch, charcoal and electret detectors exposed simultaneously, while three of the homes were also monitored by continuous-sampling detectors at hourly intervals over extended periods. Calibration of dose-integrating devices against each other and against continuous-monitoring systems confirmed good responsivity and linearity. Although track-etch, charcoal and electret devices are suitable in principle for one-week measurements, zero-exposure offset and natural radon variability cause many one-week results to be equivocal, necessitating repetition of the measurement. One-week exposures can be reliable indicators in low-radon areas or for new properties, but in high-radon areas, the use of three-month exposures is indicated. This analysis also established confidence limits for short-term measurements.

Item Type: Article
Uncontrolled Keywords: Radon; Track-etch; Electret; Activated charcoal; Continuous sampling; Comparative assessment; Health risk; Domestic properties
Research Area: Earth systems and environmental sciences
Faculty, School or Research Centre: Faculty of Science (until 2011) > School of Geography, Geology and Environment > Centre for Earth and Environmental Science Research (CEESR)
Depositing User: Gavin Gillmore
Date Deposited: 06 Jun 2008
Last Modified: 17 Nov 2008 17:22
URI: http://eprints.kingston.ac.uk/id/eprint/1658

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