地下建筑内部环境天然辐射强度监测分析

Monitoring Analysis of Natural Radiation Intensity in the Internal Environment of Underground Buildings

地下建筑具有重要的民用价值和军事用途,但其内部环境中的天然辐射可能危害人体健康。用多功能辐射测量仪对不同类型的地下建筑进行监测后,经分析发现:地下建筑内部环境中的天然辐射强度总体低于室外地面和地上层室内,这种规律与以往研究结果有所不同;在人员年工作时间正常的情况下,地下建筑内部环境中的天然辐射剂量不超过标准限值1mSv/a,对身体健康无损伤效应,可进行工作和军事活动;但在工作时间足够长的情况下,辐射剂量会超过标准限值1mSv/a,存在年有效剂量超标风险,可能对人体造成损伤,需要在开展工作和军事活动过程中采取防护措施,以确保安全。

he underground buildings have important civil values and military uses, but their internal natural radiation may endanger human health. After monitoring the different types of underground buildings with multi-function radiation measuring instrument, it is found that the natural radiation intensity in the internal environment of the underground building is generally lower than that of the outdoor ground and the upper floor, which is different from the previous research results. In the case of normal working hours, the natural radiation dose in the internal environment of the underground building does not exceed the standard limit of 1mSv/a, which is no harm to human health and people can work and carry out military activities. However, if the working time is long enough, the radiation dose will exceed the standard limit of 1 mSv/a, which has a risk of annual effective dose exceeding the standard, and injure the human bodies, it needs to take protective measures to ensure safety in the process of work and military activities.