Ennemoser O, Ambach W, Auer T, Brunner P, Schneider P, Oberaigner W, Purtscheller F, Stingl V
Institute of Medical Physics, University of Innsbruck.
Health Phys. 1994 Aug;67(2):151-4. doi: 10.1097/00004032-199408000-00005.
In a village in western Tyrol, Austria (Umhausen, 2,600 inhabitants), unusually high indoor radon concentrations were measured, and the lung cancer mortality rate was found to be higher than that of the total population of Tyrol (620,000 inhabitants). Annual means of radon concentrations were found to be particularly high in the area between the two rivers Otztaler Ache and Hairlachbach, geologically an alluvial fan of a giant rock slide of granitic gneisses (area A, median of annual means on the ground floors: 1,868 Bq m-3); radon concentrations were comparatively low in the rest of the village (area B, median of annual means on the ground floors: 182 Bq m-3). On the basis of these medians, the annual exposures were calculated according to the ICRP model (area A: 58.8 x 10(5) Bq h m-3; area B: 5.7 x 10(5) Bq h m-3). Data taken from the Cancer Registry of Tyrol were used to determine the age- and sex-standardized lung cancer mortality rate (area A: 6.17; area B: 1.43).
在奥地利蒂罗尔西部的一个村庄(乌姆豪森,有2600名居民),测量到室内氡浓度异常高,且发现肺癌死亡率高于蒂罗尔总人口(62万居民)的肺癌死亡率。在奥茨山谷阿赫河和海尔拉赫巴赫河之间的区域,氡浓度的年平均值被发现特别高,从地质上来说,该区域是花岗岩片麻岩巨大岩石滑坡形成的冲积扇(A区,底层年平均值中位数:1868贝克勒尔/立方米);村庄其他区域的氡浓度相对较低(B区,底层年平均值中位数:182贝克勒尔/立方米)。基于这些中位数,根据国际辐射防护委员会模型计算年暴露量(A区:58.8×10⁵贝克勒尔·小时/立方米;B区:5.7×10⁵贝克勒尔·小时/立方米)。从蒂罗尔癌症登记处获取的数据用于确定年龄和性别标准化的肺癌死亡率(A区:6.17;B区:1.43)。