期刊名称：Research Journal of Environmental and Earth Sciences
印刷版ISSN：2041-0484
电子版ISSN：2041-0492
出版年度：2012
卷号：4
期号：02
页码：131-133
出版社：Maxwell Science Publications
摘要：This study aims at estimating the lifetime cancer risk from the determination of 222Rn concentration level in some offices in Ogbomoso, Southwestern Nigeria. The measurement of the indoor 222Rn concentration levels at some offices in Ladoke Akintola University of Technology (LAUTECH) Ogbomoso, Nigeria was carried out using an active electronic radon gas detector, safety Pro3 (model HS71512) between February and July 2011. The result of the measurement showed that the average radon concentration is 26.3±4.17 Bq/m3. This value translated to an annual effective dose of 0.13 mSv/y and lifetime fatality risk of 9.94×10-6. These values which were found to be higher than values reported for some countries were however lower than the world average value and below the recommended action level. Thus, the results of this work have shown that the exposure to indoor radon at the offices considered is of low risk of fatal cancer occurrence due to radon inhalation.
关键词：Active radon gas detector ; cancer risk ; LAUTECH ; radon inhalation ; ;
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