阳江核电厂外围环境气溶胶总α、总β放射性水平

发布时间：2018-07-12 11:32

  本文选题：气溶胶 + 总α　； 参考：《核技术》2017年08期

【摘要】：核电厂周围环境气溶胶的总放射性水平是一项重点关注项目。为掌握阳江核电周围环境气溶胶中总α、总β放射性水平及变化趋势,自2014年1月,对阳江核电厂5 km范围内大澳和允泊的气溶胶总α、总β进行为期三年的采样监测,获得该核电厂5 km范围内气溶胶总α、总β活度浓度范围分别为0.01-0.35 m Bq·m~(-3)、0.05-2.46 m Bq·m~(-3),年均值分别为0.07 m Bq·m~(-3)、0.65 m Bq·m~(-3)。受降雨影响,总α、总β放射性变化有明显的季节特征,总体呈现冬春季高、夏秋季低的特点。监测结果与对照点和本底调查进行比较,总α、总β活度浓度没有明显变化,初步判断阳江核电厂运行安全。
[Abstract]:The total radioactivity of aerosols around nuclear power plants is a major concern. In order to understand the radioactivity level and change trend of total 伪 and total 尾 in aerosols of Yangjiang nuclear power plant, the total 伪 and total 尾 of aerosols in Tai O and Yun Park within 5 km range of Yangjiang Nuclear Power Plant have been sampled and monitored for three years since January 2014. The total aerosol 伪 and total 尾 activity concentration ranges from 0.01-0.35 m Bq m-3 to 0.05-2.46 mBq m-3, respectively, and the annual mean values are 0.07 mBq m-3 and 0.65 MBq m-3, respectively. Under the influence of rainfall, the changes of total 伪 and 尾 radioactivity have obvious seasonal characteristics, showing the characteristics of high in winter and spring and low in summer and autumn. Compared with the control point and background investigation, the monitoring results showed that the total 伪, total 尾 activity concentration had no obvious change, so the operation safety of Yangjiang nuclear power plant was preliminarily judged.
【作者单位】： 广东省环境辐射监测中心;
【分类号】：TL751;TM623
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本文编号：2117015