2018—2022年云南省主要江河放射性水平监测与评价

Radiation Level Monitoring and Evaluation of Main Rivers in Yunnan Province from 2018 to 2022

摘要: 2018—2022年在云南省主要江河设置6个监测断面，定量分析水中总U、总Th、²²⁶Ra、总α放射性、总β放射性、⁹⁰Sr、¹³⁷Cs放射性活度浓度。放射性核素监测结果表明：2018—2022年云南省主要江河中总U、总Th、²²⁶Ra、总α放射性、总β放射性、⁹⁰Sr、¹³⁷Cs 7项指标的活度浓度在正常波动范围内，5年间变化保持平稳，无异常升高现象。

Abstract: From 2018 to 2022,six monitoring sections were set up in the main rivers of Yunnan Province to quantitatively analyze the total U,total Th,²²⁶Ra,and total α Radioactivity,total β Radioactivity,⁹⁰Sr,¹³⁷Cs activity concentrations.The results indicated that from 2018 to 2022,total U,total Th,²²⁶Ra,total α Radioactivity,total β,⁹⁰Sr,and ¹³⁷Cs remained within the normal fluctuation range and maintained stable during the 5-year period without any abnormal increase.