人们早就知道,吸入发射α粒子的短寿命氡子体,有引起肺癌的潜在危险。为了最大限度降低气载污染物浓度以保护工人健康,必须采取一些控制措施。矿山的标准控制实践是系统通风和充填采空区。然而,当矿山开采深度及暴露的空间增大时就需加大通风能力。另一个可能的辐射控制措施,是用密封剂防止氡从矿岩帮壁析入矿井大气。 It has long been known that inhalation of short-lived radon progeny emitting alpha particles poses a potential risk of lung cancer. In order to minimize the concentration of airborne pollutants to protect the health of workers, some control measures must be taken. The mine’s standard control practice is to ventilate and fill the goaf. However, the ventilation capacity needs to be increased when the mining depth and exposed space increase. Another possible radiation control measure is to use sealants to prevent radon from entering the mine atmosphere from the wall of the ore.