Grygier Agata, Skubacz Krystian, Piech Adam, Sobik-Szołtysek Jolanta
Silesian Centre for Environmental Radioactivity, Central Mining Institute, Plac Gwarków 1, Katowice, 40166, Poland.
Historic Silver Mine in Tarnowskie Góry, Szczęść Boże 81, Tarnowskie Góry, 42600, Poland.
Sci Rep. 2025 Mar 14;15(1):8828. doi: 10.1038/s41598-025-89424-z.
This paper presents the results of a two-year radon risk study conducted at the Historic Silver Mine in Tarnowskie Góry. During this period, continuous measurements of radon activity concentration were carried out in three-month cycles at 30 points distributed along the tourist route. The average radon activity concentration was 1160 Bq/m for the first year of measurements and 1210 Bq/m in the second year. Based on the collected data, seasonal correction factors considering seasonal variations in radon activity concentration (SCF) were determined. The obtained factors are in the range of 0.8-1.4. In addition, the spatial variation of radon activity concentration was studied at selected locations of the mine at different heights of the location of the detectors and their distribution on opposite sides of the excavation. Based on the collected data, effective doses were calculated. Assuming annual working time of 300 h, which was specified for workers, the average annual dose is 0.6 and 1.3 mSv for the conversion factor of 1.4 mSv/(mJ/m⋅h) indicated in Polish law and 3.1 mSv/(mJ/m⋅h) as recommended in the ICRP report no 137 for underground mines respectively. For the annual working time of 1800 h, the corresponding doses would be 3.4 mSv and 7.4 mSv.
本文介绍了在塔尔努夫斯基山历史悠久的银矿进行的为期两年的氡风险研究结果。在此期间，沿着旅游路线分布的30个点每三个月进行一次氡活度浓度的连续测量。第一年测量的平均氡活度浓度为1160 Bq/m，第二年为1210 Bq/m。根据收集到的数据，确定了考虑氡活度浓度季节变化的季节校正因子（SCF）。得到的因子范围为0.8 - 1.4。此外，在矿井的选定位置，研究了探测器位置不同高度及其在巷道相对两侧分布情况下氡活度浓度的空间变化。根据收集到的数据计算了有效剂量。假设工人规定的年工作时间为300小时，按照波兰法律规定的1.4 mSv/(mJ/m⋅h)的转换因子以及国际辐射防护委员会第137号报告中推荐的地下矿井3.1 mSv/(mJ/m⋅h)的转换因子，平均年剂量分别为0.6 mSv和1.3 mSv。对于1800小时的年工作时间，相应剂量将分别为3.4 mSv和7.4 mSv。
