Why is 220Rn (thoron) measurement important?
Why is 220Rn (thoron) measurement important?
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DOI：
10.1093/rpd/ncq246
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发表时间：
2010-10-01
影响因子：
1
通讯作者：
Tokonami, S.
中科院分区：
文献类型：
--
作者：
Tokonami, S.
基于氡导致肺癌风险的最新流行病学分析的新科学发现已经得到证实。居民氡浓度的测量主要采用被动式测氡仪。虽然被动式测氡仪通常是专门用于高效测氡的，但有几种类型的被动式测氡仪可以同时探测钍射气和氡。在这种情况下，这些探测器读数可能包括氡和钍射气信号。如果读数被高估，则在进行流行病学研究时，肺癌风险将被视为有偏差的估计。根据我们的经验，氡、钍射气和钍射气子体浓度之间似乎没有相关性。因此，一个参数不能由另一个参数估计。这项研究提出的重要性，钍射气测量的整个结果，我们已经在现场和实验室迄今为止。
New scientific findings based on the latest epidemiological analyses for lung cancer risk due to radon have been demonstrated. The residential radon concentration is mainly measured by passive radon detectors. Although the passive radon detector is usually designed to detect radon efficiently and exclusively, several types of them can detect thoron together with radon. In this case, these detector readings may include both radon and thoron signals. If the readings are overestimated, the lung cancer risk will be given as a biased estimate when epidemiological studies are carried out. In our experience, there seem to be no correlation among radon, thoron and thoron progeny concentrations. Therefore, one parameter cannot be estimated by the other. This study presents the importance of thoron measurement throughout results we have obtained in field and in laboratory so far.