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A study of environmental radon levels in rammed earth dwellings in the south west of Western Australia

Walsh, M. and Jennings, P. (2002) A study of environmental radon levels in rammed earth dwellings in the south west of Western Australia. Radiation Protection in Australasia, 19 (2). pp. 67-73.

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Abstract

Indoor radon and thoron progeny Equilibrium Equivalent Concentrations (EEC) were measured with a portable 'Radon Sniffer' in 10 rammed earth dwellings and 10 conventional dwellings in Margaret River in the South West of Western Australia. Natural background gamma radiation was also measured within the dwellings. The results of this study show that the mean indoor radon progeny concentrations in rammed earth and non-rammed earth dwellings was 24 Bq m-3 EEC and 9.3 Bq m-3 EEC respectively. The mean indoor thoron progeny concentrations in rammed earth and non-rammed earth dwellings was 3.9 Bq m-3 EEC and 0.8 Bq m-3 EEC respectively. The ranges of combined indoor radon and thoron progeny concentrations in rammed earth and non-rammed earth dwellings were between 2.1 and 76 Bq m-3 EEC and 2.0 and 27 Bq m-3 EEC respectively. The mean annual effective radiation dose equivalents from combined indoor radon and thoron progeny concentrations EEC using UNSCEAR's (1982) conversion factors in rammed earth and non-rammed earth dwellings were 4.1 mSv y-1 and 2.2 mSv y-1 respectively.

Publication Type: Journal Article
Murdoch Affiliation: School of Mathematical and Physical Sciences
Publisher: Australasian Radiation Protection Society
URI: http://researchrepository.murdoch.edu.au/id/eprint/25070
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