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| Titel |
A reconnaissance study of radon concentrations in Hamadan city, Iran |
| VerfasserIn |
G. K. Gillmore, N. Jabarivasal |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 4 ; Nr. 10, no. 4 (2010-04-19), S.857-863 |
| Datensatznummer |
250008088
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| Publikation (Nr.) |
 copernicus.org/nhess-10-857-2010.pdf |
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| Zusammenfassung |
| This paper presents results of a reconnaissance study that used CR-39 alpha
track-etch detectors to measure radon concentrations in dwellings in
Hamadan, western Iran, significantly, built on permeable alluvial fan
deposits. The indoor radon levels recorded varied from 4 (i.e. below the
lower limit of detection for the method) to 364 Bq/m3 with a mean value
of 108 Bq/m3 which is 2.5 times the average global population-weighted
indoor radon concentration – these data augment the very few published
studies on indoor radon levels in Iran. The maximum radon concentration in
Hamadan occurs during the winter period (January to March) with lower
concentrations during the autumn. The effective dose equivalent to the
population in Hamadan is estimated from this study to be in the region of
2.7 mSv/y, which is above the guidelines for dose to a member of the public
of 1 mSv/y
suggested by the International Commission on Radiological Protection (ICRP)
in 1993. This study supports other work in a number of countries that
indicates such permeable "surficial" deposits as being of intermediate to
high radon potential. In western Iran, the presence of hammered clay floors,
the widespread presence of excavated qanats, the textural properties of
surficial deposits and human behaviour intended to cope with winds are
likely to be important factors influencing radon concentrations in older
buildings. |
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