Fijałkowska-Lichwa Lidia, Przylibski Tadeusz A
Faculty of Civil Engineering, Division of Geotechnics, Hydrotechnics, Underground Construction and Hydrological Engineering, Wrocław University of Science and Technology, Wybrzeże S. Wyspiańskiego 27, 50-370, Wrocław, Poland.
Faculty of Geoengineering, Mining and Geology, Laboratory of Geology and Planetary Sciences, Wrocław University of Science and Technology, Wybrzeże S. Wyspiańskiego 27, 50-370, Wrocław, Poland.
Environ Geochem Health. 2023 May;45(5):1475-1498. doi: 10.1007/s10653-022-01280-2. Epub 2022 Apr 30.
The aimed of the work was estimated the value (level) of mean annual Rn activity concentration in an underground space based on monthly (k) and quarterly (k) correction factors. The calculations of factors were developed with the assumption that measurements will be conducted for at least 1 month or a quarter of a year. Radon monitoring to confirm the calculated values was carried out continuously from 2008 to 2019 and verification was made on real data obtained in 2020. The estimated mean annual Rn activity concentration for spaces with natural air exchange depends on factors k and for mechanically ventilated spaces-k. The k for the first group varies from 1.2 to 3.3 between January and March, and between October and December. In the remaining months, k assumes the values from 0.6 to 0.8. In spaces where natural air exchange with the atmosphere is not impeded by airlocks, the k takes the values of 1.0-1.5 (I-III and X-XII), 0.7-0.8 (V-IX), and 1.0 (IV). For spaces with mechanical ventilation, the k is characterized by values in the range of 1.3-1.4 (I and IV quarter), and 0.9 in the others. In spaces with an unknown ventilation method or when the methods are mixed, the averages for both groups of correction factors can be used: k in the range of ≥ 1.0-1.6 (I-III and IX-XII) and < 1.0-0.7 (IV-XI), and k-in the range of 1.3-1.4 (I and IV quarter) and 0.9 in the others.
这项工作的目的是基于月度（k）和季度（k）校正因子估算地下空间中氡的年平均活度浓度值（水平）。因子的计算是在假设测量将至少进行1个月或一年中的一个季度的基础上进行的。从2008年到2019年持续进行氡监测以确认计算值，并根据2020年获得的实际数据进行验证。对于自然通风空间，估算的氡年平均活度浓度取决于因子k，对于机械通风空间则取决于因子k。第一组的k在1月至3月以及10月至12月之间为1.2至3.3，在其余月份中，k的值为0.6至0.8。在与大气的自然空气交换不受气闸阻碍的空间中，k的值为1.0 - 1.5（I - III和X - XII）、0.7 - 0.8（V - IX）以及1.0（IV）。对于机械通风空间，k的特征值范围为1.3 - 1.4（第一和第四季度），其他季度为0.9。在通风方式未知或多种方式混合的空间中，可以使用两组校正因子的平均值：k在≥1.0 - 1.6（I - III和IX - XII）以及<1.0 - 0.7（IV - XI）范围内，k - 在1.3 - 1.4（第一和第四季度）以及其他季度为0.9的范围内。
