国外矿山氡子体净化技术的现状

• 作 者: 王秉权
• 机 构: 东北工学院,
• 出 处: 有色金属(矿山部分)
• 发表日期: 1986年06期
• 关键词: 子体 肺癌发病率 流行病学研究 α辐射 肺支气管 母体核素 静电除尘器 清灰 捕集效率 放射性辐射

(一)井下应用净化技术的必要性许多国家对氡子体致病作用的流行病学研究已经清楚地证明,过多地暴露于高浓度氡子体中使肺癌发病率显著增高。产生α辐射的氡子体 RaA 和 RaC’对肺支气管细胞的放射性剂量是影响最大的,长期吸入会造成肺组织的损坏。因此,各国已公认氡子体是一种致癌物质。

(I) Necessity of downhole application of decontamination technology Epidemiological studies of the causal role of radionuclides in many countries have clearly demonstrated that excessive exposure to high concentrations of radon progeny leads to a significant increase in the incidence of lung cancers. Radionuclide RaA and RaC ’, which produce alpha radiation, are most affected by radioactive doses to lung bronchial cells, and long-term inhalation can cause damage to lung tissue. Therefore, all countries have recognized that the radon progeny is a carcinogen.