220Rn and its progeny in dwellings of Korea
220Rn and its progeny in dwellings of Korea
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DOI：
10.1016/j.radmeas.2007.06.012
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发表时间：
2007-09-01
影响因子：
2
通讯作者：
Tokonami, Shinji
中科院分区：
文献类型：
--
作者：
Kim, Chang-Kyu;Kim, Young-Jae;Tokonami, Shinji
Concentrations 01, Rn-220 and its progeny were measured in 450 dwellings from 2002 to 2004 using two kinds of simple passive Rn-222 and Rn-220 monitors, Radopot (TM) and Rn-220 progeny monitor. The annual arithmetic mean (AM) and geometric mean (GM) of Rn-220 concentrations were 40.4 and 10.7 Bq m(-3), respectively. The annual arithmetic mean (AM) of EECTn concentration was 0.89 +/- 0.70 Bq m(-3), and the annual geometric mean (GM) was 0.60 Bq m(-3) (95% confidence interval: 0.43-0.78 Bq m(-3)). The concentrations of Rn-220 in Korean-style houses built with mud block were about two times higher than those in apartments. The average annual effective dose due to inhalation exposure to Rn-220 and its progeny in dwellings was 0.25 mSv y(-1). (c) 2007 Elsevier Ltd. All rights reserved.
