安徽地区气溶胶中^(137)Cs活度浓度监测

Monitoring and Analysis of^(137)Cs in Atmospheric Aerosol Samples in Anhui

利用超大流量气溶胶采样器和γ谱仪,对安徽三个点位气溶胶中人工放射性核素137 Cs活度浓度进行了为期两年的采样监测,共六次检出超过探测限的137 Cs,活度浓度为1.4~6.5μBq/m^(3)。结合国家辐射环境监测网现有数据,对安徽地区气溶胶中^(137)Cs活度浓度与季节、空气条件关系进行了分析,为深入研究大气中相关放射性核素浓度分布规律奠定了基础。

The activity concentration of the artificial radionuclide^(137)Cs in three points aerosols in Anhui was monitored for two years by using high-volume air sampler and HPGe spectrometer.A total of six times^(137)Cs was detected,and the activity concentration was 1.4~6.5μBq/m^(3).Combined with the existing data of the environmental monitoring network,the relationship between the activity concentration of^(137)Cs in aerosols in Anhui Province and the seasonal and air conditions was analyzed,which laid a foundation for in-depth study of the distribution of relevant radionuclide concentrations in the atmosphere.