2023年云南鹤庆化龙泉气氡高值变化特征分析  

VARIATION CHARACTERISTICS OF GAS RADON IN HEQINGHUALONGQUAN,YUNNAN PROVINCEC IN 2023

作　　者：李见 杨黎 杨树锋 LI Jian;YANG Li;YANG Shufeng(Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

机构地区：[1]云南省地震局,云南昆明650224

出　　处：《高原地震》2023年第3期29-34,共6页Plateau Earthquake Research

基　　金：云南省重点研发计划(公共安全专项)(项目编号:202203AC100003)、云南省地震局科技人员传帮带培养项目(项目编号:CQ3-2021005)、云南省地震局青年基金课题(项目编号:2023K09)联合资助。

摘　　要：鹤庆化龙泉BG2015R气氡观测数值长期在约0.5 Bq/L背景值,2023年2月19日测值快速上升,最高测值达70.3 Bq/L。对化龙泉观测仪器、观测系统、观测场地周边环境及人为干扰等方面进行系统检查和分析,结果显示:鹤庆化龙泉点气氡高值的出现为观测点所处水库蓄水,水位上升淹没集气装置导致;日常观测中长期稳定的约0.5 Bq/L背景值其实不是真实的泉水气氡数据,而是一直对空气中的氡测值,出现的高值变化才是实际的泉水气氡测值。建议鹤庆县局对化龙泉观测点尽快升级改造,对周围水位变化情况等做好观测记录。The observed radon value of BG2015R in Hulongquan,Heqing has been about 0.5Bq/L for a long time,and the measured value rose rapidly on February 19,2023,with the highest measured value reaching 70.3Bq/L.The observation instrument,observation system,the surrounding environment of the observation site and human interference are systematically checked and analyzed.The results show that the high radon value of Hualongquan point gas is caused by the impounding of the reservoir where the observation point is located,and the rising water level overwhelms the collecting device.The medium and long-term stable background value of about 0.5 Bq/L observed daily is actually not the real radon data of spring water gas,but the radon value in the air,and the high value change is the actual radon measurement value of spring water gas.It is suggested that the bureau of Heqing County upgrade the observation point of Hualongquan as soon as possible,and make observation records of the changes of surrounding water levels.

关 键 词：鹤庆化龙泉 气氡 高值变化 

分 类 号：P315.63[天文地球—地震学]