| Wang Huan,Meng Qinghua,Ma Yongzhong,Lou Yun,Bai Bin,Zhu Weijie,Kong Yuxia,Wang Hongfang,Zhang Hong,Feng Zechen,Zhai Shuguang,Yu Jun.Monitoring and analysis of activity concentrations of 7Be and 210Pb in atmospheric aerosol in Beijing from 2017 to 2020[J].Chinese Journal of Radiological Medicine and Protection,2021,41(9):690-694 |
| Monitoring and analysis of activity concentrations of 7Be and 210Pb in atmospheric aerosol in Beijing from 2017 to 2020 |
| Received:December 04, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.09.009 |
| KeyWords:Beijing Atmospheric aerosol 7Be 210Pb Activity concentration |
| FundProject:国家自然科学基金（81871386） |
| Author Name | Affiliation | E-mail | | Wang Huan | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Meng Qinghua | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Ma Yongzhong | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | myz0905@126.com | | Lou Yun | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Bai Bin | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Zhu Weijie | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Kong Yuxia | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Wang Hongfang | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Zhang Hong | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Feng Zechen | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Zhai Shuguang | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | | | Yu Jun | Beijing Municipal Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China | |
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| Abstract:: |
| Objective To monitor and analyze the activity concentrations of 7Be and 210Pb in atmospheric aerosol in Beijing from 2017 to 2020. Methods Totally 1 074 atmospheric aerosol samples were collected by high flow air sampler (SnowWhite) including 275 in spring, 266 in summer, 262 in autumn and 271 in winter and subjected to analysis by low background high-purity germanium gamma-ray spectrometery (ORTEC) to determine the activity concentrations of 7Be and 210Pb. Results The activity concentrations of 7Be in atmospheric aerosol were from 0.56 to 14.84 mBq/m3, with an avearage of 6.84 mBq/m3, and from 0.01 to 9.37 mBq/m3 for 210Pb, with an avearage 3.19 mBq/m3. The differences in activity concentrations of 7Be and 210Pb in atmospheric aerosol among differernt seasons were statistically significant (F=32.66, 93.93, P<0.05). Activity concentration of 7Be was highest in spring, followed by autumn, and lowest in summer and winter. Activity concentration of 210Pb ranged from winter, autumn, spring to summer in descending order. Conclusions The activity concentrations of 7Be and 210Pb in atmospheric aerosol in Beijing from 2017 to 2020 fluctated within the range of normal level. |
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