【摘要】 对安徽省 A、B两个石煤矿区天然放射性水平的调查结果表明 :石煤、石煤渣和石煤碳化砖中天然放射性核素 2 38U、2 2 6 Ra的含量较高 ;矿区陆地 γ辐射剂量率 ,石煤碳化砖房屋室内 γ辐射剂量率及空气中氡浓度也显著高于全省平均水平 ;流经矿区的河流水体中 U浓度增高。石煤开发利用造成局部地区放射性水平有所增高 ,但未形成大面积的放射性水平异常。更多还原

【Abstract】 The utility of bone coal in Anhui Province give rise to radiation level in some areas,without large scale abnormality.The contents of 238 U、 226 Ra in bone coal,bone coal sediment and bone coal brick notably exceed the average content in soil in Anhui Province.The 238 U concentration in water samples in streams flowing through bone coal mine zone,as well as the γ radiation dose rates and radon concentration in dwellings built with bone coal brick are high.更多还原