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本文报告了1986～1988年福建省宁化钨矿、福安钼矿和连城铅锌矿中氡及其于体浓度调查结果。在三个矿井申氡子体α潜能浓度以宁化钨矿为最高,平均值达4.26×10~(-5)J·m~(-3),比国家标准限值约高出4.5倍;钼矿和铅锌矿氡子体α潜能浓度分别为3.20×10~(-7)J·m~(-3)和5.94×10~(-7)J·m~(-3)。估计了三个矿各工种矿工肺部所受氡子体α潜能年暴露量以及终生肺癌危险度,并将其结果与国内外文献资料作了比较。
This paper reports the survey results of radon and its concentration in Ninghua tungsten mine, Fu’an molybdenum mine and Liancheng lead-zinc mine from 1986 to 1988. In the three mines, the α potential concentration of radon progenies is the highest in Ninghua tungsten mine with an average value of 4.26 × 10 -5 J · m -3, about 4.5 times higher than the national standard. The potential concentrations of radon progenies in molybdenum ore and lead-zinc mine were 3.20 × 10 -7 J · m -3 and 5.94 × 10 -7 J · m -3, respectively. Estimated annual exposures to radon progeny in lungs of miners in three miners and the lifetime risk of lung cancer, and compared the results with literature data at home and abroad.