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《Nuclear Techniques》 2008-10
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Radionuclides monitoring in atmospheric aerosol samples in Xi'an

CHANG Yinzhong~1 WANG Xuhui~2 WANG Shilian~1 WANG Jun~1 1 (CTBT Beijing National Data Centre and Radio-nuclide laboratory,Beijing 100085,China) 2 (Northwest Institute of Nuclear Technology,Xi'an 710024,China)  
The radioactivity concentrations of ~7Be,~(212)Pb and ~(214)Pb in the atmosphere of Xi'an suburb were determined from April 2002 to April 2003.A high-volume air sampler and a high resolution gamma-ray spectrometer were used to measure the radioactivity.The annual average concentrations of ~7Be,~(212)Pb and ~(214)Pb were 6.68×10~(-3) Bq·m~(-3),0.65 Bq/m~3 and 16.06 Bq·m~(-3),respectively.The ~7Be levels were higher in spring than those in other seasons, with a maximum concentration of 16.64×10~(-3) Bq·m~(-3).They reflected obvious seasonal trends.The concentrations of ~(212)Pb and ~(214)Pb have strong seasonal trends.The maximum concentrations were 1.71 Bq·m~(-3)for ~(212)Pb and 50.11 Bq·m~(-3) for ~(214)Pb in winter.Precipitation is a major factor affecting the concentrations of ~7Be,~(212)Pb and ~(214)Pb,the monthly mean values reach minimum in August,when precipitation is the biggest of all the months.Artificial radionuclides,such as ~(137)Cs,have not been found.
【CateGory Index】: X831
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Chinese Journal Full-text Database 3 Hits
1 CHANG Yinzhong WANG Xuhui WANG Jun WANG Shilian (Northwest Institute of Nuclear Technology, Xi’an 710613);Radionuclides analysis of air aerosol samples(Ⅰ) The gamma-ray spectrometric method[J];Nuclear Techniques;2004-06
2 Jiang Rangrong(Zhejiang Province Environmental Radiation Monitoring Center, Hangzhou 310012);The  ̄7Be concentration in the air above ground[J];NUCLEAR TECHNIQUES;1994-03
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Chinese Journal Full-text Database 2 Hits
1 WAN Guo-jiang1, ZHENG Xiang-dong2, H.N. LEE3, WANG Shi-lu1, WAN En-yuan1, YANG Wei1, TANG Jie2, WU Feng-chang1, WANG Chang-sheng1 and HUANG Rong-gui11.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;2.Chinese Academy of Meteorological Sciences, Beijing 100081, China;3.Environmental Measurements Laboratory, Department of Homeland Security, NY 10014-4811, USA;A comparative study on seasonal variation of ~7Be concentrations in surface air between Mt. Waliguan and Mt. Guanfeng[J];Geochimica;2006-03
2 ZHANG Feng-bao~1 YANG Ming-yi~(1,2) LIU Pu-ling~(1,2) TIAN Jun-liang~(1,2)(1.College of Resources and Environment,Northwest A&F University,Yangling,Shaanxi 712100;2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100);A REVIEW ON THE BEHAVIOR OF()~7Be IN ECOSYSTEM[J];Journal of Nuclear Agricultural Sciences;2006-05
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