【摘要】 本文给出8个铀矿地勘队井下作业人员氡子体暴露量估算及肺癌危险调查结果。采用历史前瞻性调查方法,共调查井下组19493人·年,对照组16966人·年。在1971—1986年16年观察期内,井下组中观察到肺癌7例,对照组中为3例。考虑到10年的肺癌潜伏期,井下组人员1971年至1976年的氡子体人均累积暴露量约为0.35J·hm^-3～（100WLM）,γ外照射人均有效剂量当量约为0.031Sv,内外照射的总人均有效剂量当量为1.03Sv。在1971—1986年观察期间,井下组肺癌绝对危险系数及超额相对危险系数分别为519例(10⁶人年J·hm^-3)^-1〔1.82例（10⁶人年WLM）^-1〕及294%(J·hm^-3)^-1(1.03%WLM^-1)。更多还原

【Abstract】 The estimates of cumulated potential α-energy exposure ofRadon daughters and the results in lung cancer risk survey of undergroundworkers of 8 geological exploring teams are given in this paper.Thehis orical prospective study involved 19493 person-years in undergroundgroup and 16966 person-years in control group.7 lung cancer cases wereobserved in underground group and 3 in control group during 1971—1986.Taking a latency period of 10 years into account,cumulated meanexposure up to 1976 of underground group is about 0.35 Jhm^-3（100WLM）.Effective dose equivalent from external gamma radiation is about0.031 Sv and total effective dose equivalent is 1.03 Sv.Absolute riskand relative excess risk coefficient of lung cancer in underground group during1971—1986 are 519 cases per 10⁶ person-years per Jhm^-3,or 1.82 casesper 10⁶ person-years per WLM,and 294% per Jhm^-3,or 1.03%per WLM,respectively.更多还原