A nation-wide survey on indoor radon from 2007 to 2010 in Japan.

Gen Suzuki,Ichiro Yamaguchi,Hiromitsu Ogata,Hideo Sugiyama,Hidenori Yonehara,Fumiyoshi Kasagi,Saeko Fujiwara,Yoshimi Tatsukawa, Ippei Mori, Shinzo Kimura

Journal of Radiation Research（2010）

引用 27|浏览5

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摘要

In two previous nation-wide surveys in the late 1980s and early 1990s, Japanese indoor radon concentrations increased in homes built after the mid 1970s. In order to ascertain whether this trend continued, a nation-wide survey was conducted from 2007 to 2010. In total 3,900 houses were allocated to 47 prefectures by the Neyman allocation method and 3,461 radon measurements were performed (88.7% su...

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关键词

222Rn,Building type,Structural materials,Building age,Population-weighted mean

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