田湾核电基地一期工程1、2号机组运行流出物排放致公众剂量十年评价(2007-2016年)

Assessment of public dose caused by effluent discharge at Tianwan nuclear plant (2007-2016)

介绍了气载流出物与液态流出物排放所致公众剂量的计算模式与参数,给出了2007-2016年田湾核电站流出物排放对周围公众造成的最大个人有效剂量、关键居民组、关键照射途径、关键核素与核电站80 km范围内集体有效剂量以及各年度流出物归一化排放量,并将2007-2016年公众最大个人剂量与一期工程环境影响报告书(首次装料阶段)给出的数值、国家标准GB 6249-2011规定的剂量约束值、天然本底辐射水平进行了对比,结果表明:田湾核电站在安全稳定运行的同时,各年度流出物排放对周围公众造成的影响可忽略不计。

Calculation model and parameters of public dose caused by the gaseous and liquid effluent discharge is introduced. The biggest individual effective dose, critical groups, critical exposure pathways, critical nuclides,public collective effective dose and normalized emissions of gaseous and liquid effluents are given from 2007 to 2016. The largest individual collective dose each year is compared with the designed value,the national standard GB 6249-2011 prescribed dose constraint value,and natural background radiation level. The results show that the impact to the public caused by the annual effluent discharge of Tianwan nuclear power plant can be neglected under safe and stable operation condition.