Personal and home 222Rn and gamma-ray exposure measured in 52 dwellings.
Personal and home 222Rn and gamma-ray exposure measured in 52 dwellings.
复制标题
在 52 个住宅中测量了个人和家庭 222Rn 和伽马射线暴露。
DOI：
10.1097/00004032-199112000-00004
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发表时间：
1991
期刊：
影响因子：
2.2
通讯作者：
Sylvester,J
中科院分区：
文献类型：
--
作者：
Harley,NH;Chittaporn,P;Roman,MH;Sylvester,J
一台个人222Rn和伽马射线探测器已经研制成功。探测器的精度仅受泊松计数误差的限制，在本研究中的检测下限为4.5kBq m−3h(4pci L−1d)。该探测器被用于对伊利诺伊州52户家庭的研究，以测量家庭所有层面上的个人暴露与同时暴露的情况。个人暴露于基底2 2 2 Rn浓度的比值平均为0.2 2，具有高度的分散性(R2=31%)。个人暴露量与1楼2 2 2 Rn浓度的比值为0.71，相关性良好(R2=85%)。在缺乏个人监测数据的情况下，对个人接触的最佳估计似乎是来自家庭一楼生活空间的测量。
A personal 222 Rn and gamma-ray detector has been developed. The detector precision is limited only by the Poisson counting error and has a lower limit of detection in this study of 4.5 kBq m− 3 h (4 pCi L− 1 day). The detector was used in a study of 52 homes in Illinois to measure the personal exposure vs. the simultaneous exposure on all levels of the home. The ratio of personal exposure to basement 222 Rn concentration averaged 0.22, with a high degree of scatter (R 2= 31%). The ratio of personal exposure to first floor 222 Rn concentration was 0.71, with good correlation (R 2= 85%). In the absence of personal monitoring data, the best estimate of personal exposure appears to be from measurements in the first-floor living space of the home.