【摘要】 [目的] 调查并检测山东省主要黄金矿山井下、洗选厂房内、生活区居室内空气中氡及其子体浓度;估算井下矿工暴露在氡子体下的年有效剂量当量。[方法] 氡浓度用气球法、氡子体α潜能浓度用库斯尼茨法测量。[结果] 井下、洗选厂房内、生活区居室内氡浓度平均值分别为367.0Bq·m - 3 、9.7Bq·m - 3、13.2Bq·m - 3;氡子体浓度平均值分别为102.7×10- 8 J·m - 3 、3.2×10- 8J·m - 3、4.3×10- 8J·m - 3;平衡因子分别为0.65、0.60、0.60;井下氡子体所致矿工人均年有效剂量当量为6.15m Sv·a- 1 。[结论] 洗选厂房内、生活区室内空气中氡及其子体浓度低于全省平均水平,而井下氡及其子体浓度较高,主要原因为通风不良更多还原

【Abstract】 In order to investigate and detect the radon and its daughters concentration in gold mine,inside the house of gold washery and life area of main thirteen gold mines in Shandong Province,Radon daughter’s annual effective dose equivalent was estimated in exposed workers.The measurement for radon concentration was by balloon sounding and for radon daughters potential alpha energy concentration by Kusnez.The results showed that the mean value of radon concentration in gold mine,inside the house of gold washery and life area is 367.0Bq·m -3 ,9.7Bq·m -3 ,13.2Bq·m -3 ,respectively;the mean value of randon daughters potential alpha energy concentration is 102.7×10 -8 J·m -3 ,3.2×10 -8 J·m -3 ,4.3×10 -8 J·m -3 ,respectively;equillibrium factor is 0.65,0.60,0.60,respectively.Annual worker’s average effective dose equivalent resulted from radon daughters in gold mine is 6.15mSv·a -1 .It was suggested that radon and its daughters concentration inside the gold washery and in the indoor air of life area is lower than the mean value in Shandong Province,but that in gold mine is relatively high because ventilation is poor.更多还原