本文对湖南省境内主要铀矿山的辐射环境现状进行了调查和分析.结果表明,已完成退役治理的铀矿山最大公众个人剂量估算值分别为0.23 mSv/a和0.14 mSv/a,均低于国家退役治理行业标准0.25 mSv/a;未完成退役治理的铀矿山最大公众个人剂量估算值分别为0.93 mSv/a、0.61 mSv/a和0.49 mSv/a,均高于此标准值,需要尽快完成退役治理工作.
In this paper, the radiation environment of the main uranium mine in Hunan Province was investigated and analysed.The results show that the largest public individual dose of the retired uranium mines were 0.23 mSv/a and 0.14 mSv/a,below the national standard of retired industry 0.25 mSv/a.The largest public individual dose of the unretired uranium mines were 0.93 mSv/a,0.61 mSv/a and 0.49 mSv/a, higher than the standard value,which needs to be decommissioned completely.