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Indoor radon concentrations in workplaces and dwellings in North-Western Greece

Published online by Cambridge University Press:  06 June 2009

K. Ioannides
Affiliation:
Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
D. Patiris
Affiliation:
Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
C. Papachristodoulou
Affiliation:
Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
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Abstract

Measurements of indoor radon concentrations were performed in 44 workplaces and 87 dwellings in the region of Epirus, north-western Greece, using electret and alpha-track detectors. Radon concentrations followed a log-normal distribution with an arithmetic mean of (92 ± 54) Bq m-3 in workplaces and (86 ± 52) Bq m-3 in dwellings. In all cases, radon levels were below 400 Bq m-3, which is the action level proposed by the European Commission. Comparing summer and winter measurements, no statistically significant seasonal variation was established. However, radon concentrations measured in basement and ground floor levels were significantly higher (p < 0.001) than those measured in the first and upper floors. A mean annual effective dose of 0.64 and 1.63 mSv y-1 was estimated for occupational and residential exposure, respectively. The reported data contribute to the assessment of radon distribution and dose estimate at the national level.

Type
Research Article
Copyright
© EDP Sciences, 2009

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References

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