Radon health hazards of some rocks of Iranian origin, frequently used as building stones

H. Noori; A. Ranjbar

doi:10.1007/s10967-011-1185-9

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 290: Issue 1

Radon health hazards of some rocks of Iranian origin, frequently used as building stones

Authors:

H. Noori

H. Noori Faculty of Science, Department of Physics, Shahid Bahonar University of Kerman, Kerman, Iran

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and

A. Ranjbar

A. Ranjbar Faculty of Science, Department of Physics, Shahid Bahonar University of Kerman, Kerman, Iran

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Pages:: 183–186

Online Publication Date:: 03 Jun 2011

Publication Date:: 01 Oct 2011

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-011-1185-9

Keywords:: Building stones; Annual dose; Rock size; Radon concentration

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Abstract

Radon exhalation rate from various types of stones, used inside the living buildings, is a major factor for evaluation of the environmental radon level. To verify the significance and lethal impacts of this unknown and obscure source of radiation upon the people around the world, the exhaled radon gas concentrations from the rocks, granodiorite, granite, limestone and aragonite, and the effect of their block sizes on the exhalation rate, have been studied. The block samples, collected from their ores, were transferred to plastic containers in which the CR-39 detectors could properly be placed and air tightened, for concentration measurements. The results show the radon concentration of 7.4 ± 0.8, 6.6 ± 0.6, 0.08 ± 0.02 and 0.09 ± 0.02 kBq m⁻³ for granodiorite, granite, limestone and aragonite, respectively. The corresponding annual dose values in a closed environment are: 186 ± 20, 166 ± 15, 2.5 ± 1 and 2 ± 1 mSv y⁻¹. These absorbed dose values indicate that granodiorite and granite when used inside the buildings could increase the risk of various cancers while aragonite and limestone have much lower risks and are recommended for use inside the buildings. The former ones when used in the closure areas remedial action should be implemented. The results do not show obvious dependence between the rock size of the samples and their radon exhalation rate.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)