Radon equilibrium factor Feq is an important factor in radon progeny dose assessment. A review of published measurements of Feq shows a range of values from 0.1 to 1.0 reported in studies from more than 26 countries measured in 173 underground mines, and 136 show caves, tourist mines, and thermal spas. The average values of Feq are 0.38 in underground mines and 0.39 for show caves, tourist mines, and thermal spas. The wide range of Feq in those special workplaces suggests that location-, environment-, and operation-specific values are more appropriate than a recommended average value in the calculation of lung bronchial dose. This is especially important in mines or other typically high radon exposure locations because Feq can be used for recording an individual's occupational radon exposure or dose.

中文翻译：

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地下矿井，溶洞和温泉中的Rad平衡因素综述。

equilibrium平衡因子Feq是ra子代剂量评估中的重要因素。回顾已发表的Feq测量值，发现来自26个国家的研究报告了从0.1到1.0的值范围，在173个地下矿井中进行了测量，而136个显示了洞穴，旅游矿井和温泉。Feq的平均值在地下矿井中为0.38，而在地下洞穴，旅游矿井和温泉中则为0.39。在那些特殊的工作场所中，Feq的范围很广，这表明在计算肺支气管剂量时，位置，环境和操作特定的值比建议的平均值更合适。这在矿山或其他通常较高的don暴露场所中尤其重要，因为Feq可用于记录个人的职业ra暴露或剂量。