北京地区空气悬浮颗粒物放射性水平检测评价  

Measurement and Evaluation of the Radioactive Level in Air Suspended Particulates in Beijing

作　　者：王海鹏[1,2] 秦春艳[3] 宋福祥[3] 李雪贞[3] 曹乃家[3] 李梦珂 WANG Hai-peng;QIN Chun-yan;SONG Fu-xiang;LI Xue-zhen;CAO Nai-jia;LI Meng-ke(China Institute of Atomic Energy,Beijing 102413,China;Beijing Radiation Safety Technology Center, Beijing 100089,China;3Nuclear and Radiation Safety Centre MEP,Beijing 100082,China)

机构地区：[1]中国原子能科学研究院,北京102413 [2]环境保护部核与辐射安全中心,北京100082 [3]北京市辐射安全技术中心,北京100089

出　　处：《核电子学与探测技术》2018年第4期449-452,共4页Nuclear Electronics & Detection Technology

摘　　要：采集北京地区不同空气质量指数下的大气总悬浮颗粒物样品,用γ谱仪对样品中的放射性核素浓度进行分析,并将分析结果与空气TSP、PM_(2.5)和PM_(10)浓度数据进行关联性研究。结果表明,空气总悬浮颗粒物的采样量与空气质量有明显的强相关性,影响采样量的主要是PM_(2.5);空气总悬浮颗粒物样品的放射性水平含量均较低,7Be活度浓度范围在2.18～4.84 m Bq/m3,7Be浓度与TSP、PM_(2.5)、PM_(10)浓度相关性极弱;210Pb活度浓度范围在0.65～3.36 m Bq/m3,210Pb浓度与PM_(2.5)浓度高度正相关;40K活度浓度范围在0.149～0.395 m Bq/m3,40K浓度与粒径大于_(2.5)μm的颗粒物浓度高度正相关;其他核素结果均低于探测限。The samples of total suspended particulates were collected under different air quality in Beijing,the concentration of radionuclides in the samples was analyzed by gamma spectrometer,the correlation between the analysis results and the concentration of TSP or PM2.5 or PM10 was studied. The results show that there is a strong correlation between the weight of total particulate sample and the air quality,and the main influence of sample weight is PM2.5 . The levels of The radionuclides concentration of all samples were lower. The concentration of7 Be is between 2.18 and 4.84 m Bq/m3,The correlation between the concentration of7 Be and the concentration of TSP or PM2.5 or PM10 was very weak; The concentration of210 Pb is between 0. 65 and 3. 36 m Bq/m3,The concentration of210 Pb was correlated highly positively with the concentration of PM2.5; The concentration of40 K is between 0. 149 and0.395 m Bq/m3,The concentration of40 K was highly positive correlated with the particle with size greater than 2.5 μm. The results of other Radionuclides are below the detection limit.

关 键 词：总悬浮颗粒物 放射性核素 空气质量 

分 类 号：X817.2[环境科学与工程—环境工程]