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目的了解哈尔滨工程大学室内氡浓度的水平,并进行剂量水平评价。方法采用双滤膜法连续测量哈尔滨工程大学室内氡浓度,并对氡的危害进行评价。结果哈尔滨工程大学室内氡及其子体对人体造成的年辐射剂量为1.48 m Sv,略高于我国平均水平。结论哈尔滨工程大学室内氡浓度偏高,可以从“截源”、“消散”两个方面来降低室内氡浓度。
Objective To understand the indoor radon concentration level in Harbin Engineering University and evaluate the dosage level. Methods The indoor radon concentration of Harbin Engineering University was measured continuously by double membrane method and the damage of radon was evaluated. Results The annual radiation dose caused by radon and its daughters in Harbin Engineering University was 1.48 m Sv, slightly higher than the average level in China. Conclusions Indoor radon concentration in Harbin Engineering University is high, which can reduce indoor radon concentration from two aspects of “cut-off source” and “dissipation”.