盐田口岸放射性有害因子的本底调查研究

Investigation and research on background of harmful radiation factors at Yantian Port

目的掌握盐田口岸放射性有害因子分布情况及常见放射性的参考本底值范围。方法根据盐田口岸具体情况,选择具有代表性的监测点,定期进行放射性监测,并对数据进行统计分析。结果盐田口岸港区内γ射线的放射性本底值为0.064μSv/h,靠泊船舶上γ射线的放射性本底值为0.022μSv/h,两者具有显著地统计学差异。结论通过本次调查掌握了一些盐田口岸放射性本底值的基本情况,我们应该根据调查结果制定适合盐田口岸的放射性有害因子异常标准,为今后相关工作的开展提供科学的依据。

Objective To understand the distribution of harmful radiation factors and reference range of back- ground value at Yantian Port. Methods To select representative monitoring sites, monitor radioactivity regularly, prepare statistic and analyze the data. Results Radioactive background value of γ ray is 0. 064μSv/h at Yantian Port, and 0.022μSv/h on berthing vessels. These two data are significantly different. Conclusion This report grasps basic situation about background value of radioactivity at Yantian Port. Extreme standard of harmful radioac- tive factors need to be set according to the investigation result, so as to give scientific reference to the future work.