中国原子能科学研究院辐射环境质量评价

RADIOLOGICAL ASSESSMENT ON ENVIRONMENTAL IMPACT IN THE REGION OF THE INSTITUTE OF ATOMIC ENERGY

本文用环境监测结果和模式计算相结合的方法评价了中国原子能科学研究院运行29年来对环境造成的辐影响。结果表明,对于周围的广大居民来说,多年平均最大个人有效剂量当量为6.8×10^(-5)Sv/a,关键核素是^(131)I,关键居民组是正北方位1km 处的幼儿,关键途径是食用当地产的牛(羊)奶。气态流出物对剂量的贡献约占99.9%。80km 范围内计975万人的集体有效剂量当量为1.9人·Sv/a。

The environmental impact from the operation of IAE isassessed through environmental monitoring and modelling evaluation Theresults obtained indicate that the average annual effective dose equavalentreceived by the member of critical group is 6.8×10^(-5)Sv/a,the critical nuclideis ^(131)I,the critical group is children living in a north area 1 km far fromthe IAE and the critical pathway is air-grass-milk-children.The contributionof gaseous effluents to the effective dose equavalent received by the criticalgroup is about 99.9% of the total,the annual collective effective doseequavalent received by the population living in the region within 80 km ofIAE is about 1.9 man·Sv/a.