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| Monitoring and Analysis of Radioactive Noble Gas 133Xe in Atmosphere in Beijing Region in 2016 |
| MENG Qing-hua, MA Yong-zhong, LI Hui-juan, LOU Yun, WAN Ling, ZHANG Hong, ZHAI Shu-guang, YU Jun, FENG Ze-chen, ZHU Wei-jie, WANG Hong-fang |
| Beijing Center for Preventive Medicine Research Beijing Center for Disease Control and Prevention, Beijing 100013 China |
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Abstract Objective To study the activity concentration background of the radioactive noble gas 133Xe in the atmosphere in Beijing, and to provide fundamental data for scientific assessment of air quality and effective reply of unexpected atmosphere radioactive contamination in Beijing.Methods A total of 117 noble gas xenon samples of Beijing were collected during the period from July to October, 2016, and the activity concentrations of 133Xe were analyzed and measured with the Canberra BE3825 HPGe γ spectrometer system.Results The activity concentrations of 133Xe were detected in 9 out of 117 samples with the range of 0.25~5.01 mBq/m3, while no radioactive xenon 133Xe were detectable in the other samples.Conclusion The 133Xe activity concentration background in the atmosphere of Beijing can be used as reference of radioactive contamination of air, and should be monitored constantly.
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Received: 17 November 2016
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