A study of 210Po in atmospheric aerosol of Shenzhen and its committed effective dose
SU Ling-ling1, LIU Guo-qing1, DING Min-xia1,2, FENG Jiang-ping2, ZHANG Hong1
1. Institute of applied nuclear technology, College of physics and energy, Shenzhen University, Shenzhen 518060, China;
2. Shenzhen Environmental Monitoring Center, Shenzhen 518049, China
The activity concentration of 210Po in atmospheric aerosol of Shenzhen and its committed effective dose through inhalation were studied. The activity concentrations of 210Po in total suspended particle (TSP) and PM2.5 were in the range of 0.01~0.20mBq/m3 (with an average of 0.08mBq/m3) and 0.03~0.38mBq/m3 (with an average of 0.12mBq/m3), respectively. The activity concentration of 210Po showed significant positive correlation with the atmospheric concentration of PM2.5, whereas it showed poor relationship with the amount of rainfall.It is suggested that the atmosphericparticle was the key factor that control the activity concentration of 210Po in the air. The calculated average annual committed effective dose of 210Po through inhalation was 4.53×10-6Sv.
苏玲玲, 刘国卿, 丁敏霞, 冯江平, 张鸿. 深圳市大气气溶胶中210Po的比活度及其辐照剂量[J]. 中国环境科学, 2017, 37(6): 2025-2028.
SU Ling-ling, LIU Guo-qing, DING Min-xia, FENG Jiang-ping, ZHANG Hong. A study of 210Po in atmospheric aerosol of Shenzhen and its committed effective dose. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(6): 2025-2028.
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