海阳市环境介质中90Sr放射性水平研究

Study on radioactivity level of 90Sr in environmental media in Haiyang

目的调查和研究海阳市环境介质中90Sr放射性水平,为评价海阳核电厂的运行对周围环境影响提供基础数据。方法参照《水和生物样品灰中90Sr的放射化学分析方法》HJ815-2016、《土壤中90Sr的分析方法》EJ/T 1035-2011方法分析。结果环境水样中90Sr活度范围为(2.49~6.68)mBq/L,土壤中90Sr活度范围为(0.223~1.63)Bq/kg,生物样品中90Sr活度范围为(0.063~0.140)Bq/kg·鲜。结论海阳市环境介质中90Sr放射性水平未见异常。

Objective To investigate and study the radioactivity level of 90Sr in environmental media in Haiyang and to provide basic data for evaluating the impact of the operation of Haiyang Nuclear Power Plant on the surrounding environment.Methods The analytical methods are referred to "Radiochemical analysis of 90Sr in water and ash of biological samples"(HJ 815-2016), and "Analytical method of 90Sr in soil"(EJ/T 1035-2011).Results The 90Sr activity ranges from 2.49 to 6.68 mBq/L in the environmental water samples. For the soil it ranges from 0.223 to 1.63 Bq/kg and for the organism it ranges from 0.063 to 0.140 Bq/kg·fresh.Conclusion There is no abnormality in the radioactivity level of 90Sr in environmental media in Haiyang.