丹东地区环境放射性现状调查与评价

Environmental Radiation in Dandong Area:Investigation and Evaluation

通过实地调查研究,查清了丹东地区放射源和射线装置的数量,采用网格式的方法测量了全地区地表γ射线的剂量率,并对鸭绿江水体中的放射性进行了分析。结果表明,丹东地区的放射环境目前还是安全的,天然γ放射性本底高于辽宁省的平均水平,鸭绿江水体中的放射性水平处于低放水平。

Through field survey, the number of radiation sources and radiation devices in Dandong area was found out. By grid method, the dose rate of terrestrial gamma radiation in this area was measured. In addition, the radioactivity of water in Yalu River was analyzed. The results show that, the environmental radiation in Dandong area is presently safe, with a natural background radiation level higher than the average level of Liaoning province. The radioactivity of water in Yalu River is low.