Faculty of Civil Engineering, Wrocław University of Science and Technology, Wybrzeże S. Wyspiańskiego 27, 50-370, Wrocław, Poland.
Department of Radiation Protection, Nofer Institute of Occupational Medicine, Św. Teresy 8, 91-348, Łódź, Poland.
Environ Geochem Health. 2024 Jul 29;46(9):337. doi: 10.1007/s10653-024-02132-x.
The first verification of a tool developed to improve the work of controlling bodies, managers and employees of underground facilities subject to radiation protection requirements was conducted. The recommended values of correction factors were verified using archival results of measurements conducted for the Institute of Occupational Medicine in Łódź in seven underground workplaces in Poland over exposure periods of a month (10,8678 data) and a quarter of a year (53,688 data). In a cave two groups of monthly factors, produced estimates with almost 70% to 99% consistency with the measured values. Along tourist routes located in mines, a similar fit was obtained using three groups of correction factors for measurement results from March, June and July. In the extraction areas of active underground mines, the best fit was produced by factors calculated as averages for spaces varying in the degree of insulation and ventilation method, while in other departments of mining plants, by correction factors recommended for facilities equipped with mechanical ventilation systems. All the quarterly correction factors produced the best fit between estimated mean annual concentrations and measurement results obtained in the second quarter of the calendar year. A wide variation in result consistency (from 20-30 to 65-80%) obtained for two underground tourist routes in the fourth quarter of the year demonstrates that it is best not to adopt results from this measurement period (October-December) for estimating mean annual radon concentration using the set of quarterly correction factors.
首次验证了一种旨在改进地下设施辐射防护要求的控制机构、管理人员和员工工作的工具。使用在波兰七个地下工作场所进行的为期一个月（108678 个数据）和一个季度（53688 个数据）的测量档案结果，验证了建议的修正因子推荐值。在一个洞穴中，两组月度因子产生的估计值与实测值的一致性几乎达到 70%至 99%。在位于矿山中的旅游路线上，使用三月份、六月份和七月份的三组校正因子，对测量结果进行了类似的拟合。在活跃的地下矿山开采区，用根据绝缘程度和通风方式变化的空间计算的平均因子产生了最佳拟合，而在其他矿山工厂部门，则采用了推荐的用于配备机械通风系统的设施的校正因子。所有季度校正因子都产生了最佳的拟合，即估计的年平均浓度与在日历年第二季度获得的测量结果之间的拟合。对于一年中的第四个季度，在两条地下旅游路线上获得的结果一致性差异很大（从 20-30%到 65-80%），这表明最好不要在使用季度校正因子估计年平均氡浓度时采用这段测量时间（10 月至 12 月）的结果。
