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The long life decay products 210Pb, 210Bi and 210Po of 222Rn are adsorbed in atmospheric particulate matters, thus making it possible to estimate the average residence time by measuring the specific activity or activity ratio of radon daughters. However, the existing research results are rather bad in consistency and the contradictory phenomena cannot be reasonably explained, which makes it inapplicable to atmospheric environmental monitoring. For this reason, starting with the basic attributes of lower atmosphere, based on the decay characteristics, transfer rates and other related information of radioactive nuclides in atmospheric particulates, a mathematical model is built to reflect the relationship among the particle numbers of the absorbed, decayed and transferred. Then, a new method is presented to estimate the average residence time of atmospheric aerosol. The method can solve the confusion that have appeared in the current research, reveal that the atmosphere has limited self-purification function, and provide the condition for nuclides in the same decaying chain to decay to the activity balance and the way to reduce the average residence time. All these conclusions will provide a scientific basis for further study and exploitation in atmospheric environment monitoring.
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Keywords:
- atmospheric aerosol /
- the average residence time /
- radon and its decay products /
- monitoring
[1] Obot C J 2002 Toxicology and Applied Pharmacology 184 98
[2] Auana K 2004 Science of the Total Environment 329 3
[3] Zhou X F 2010 Environment and Life 12 15 (in Chinese) [周霞芳 2010 环境与生活 12 15]
[4] Yu Y, Zhang Z J, Li Y P 2003 Journal of Environment and Health 20 359 (in Chinese) [于燕, 张振军, 李义平 2003 环境与健康杂志 20 359]
[5] Yang X X, Feng L H, Wei P 2012 Frontier Science 21 22 (in Chinese) [杨新兴, 冯丽华, 尉鹏 2012 前沿科学 21 22]
[6] Tan J H 2007 Ph. D. Dissertation (Guangzhou: Guangzhou Geochemical Research Institute of CAS) (in Chinese) [谭吉华 2007 博士学位论文(广州:中国科学院广州地球化学研究所)]
[7] Pope C A 1995 Am Respir Crit Care Med 151 669
[8] Dockery 1993 New England Journal of Medicine 329 1753
[9] Li X 2003 Nuclear Instruments and Methods in Physics Research 210 412
[10] Yue W S, Li X L, Liu J F 2006 Science of the Total Environment 368 916
[11] Jia Y Q, Zhao X H, Guo X B 2011 J. Environ Health 3 206 (in Chinese) [贾玉巧, 赵晓红, 郭新彪 2011 环境与健康杂志 3 206]
[12] Qian L, Yin Y, Tong Y Q, Wang W W, Wei Y X 2008 China Environmental Science 1 18 (in Chinese) [钱凌, 银燕, 童尧青, 王巍巍, 魏玉香 2008 中国环境科学 1 18]
[13] Kunzli N, Kaiser R, Medina S, Studnicka M 2000 Lancet 365 795
[14] Oboat C J, Morandib M T, Beebe T P 2002 Toxicology and Applied Pharmacology 184 98
[15] Baulig A, Sourdeval M, Meyer M, Marano F, Baeza Squiban A 2003 Toxicology in Vitro 17 567
[16] Kriston Aunan, Xiao Chuan. Pan 2004 Science of the Total Environment 329 3
[17] Baskaran M, Shaw G E 2001 Aerosol Science 32 443
[18] Ebaid Y Y, Khater A E M 2006 Journal of Radioanalytical and Nuclear Chemistry 270 609
[19] Papastefanou C 2006 Applied Radiation and Isotopes 64 93
[20] Shan J, Xiao D T, Liu W, Lin J, Wang G H, Wei N N, Zhou Q Z 2010 Acta Phys.Sin. 59 5358 (in Chinese) [单健, 肖德涛, 刘卫, 林俊, 王广华, 位楠楠, 周青芝 2010 59 5358]
[21] Shan J 2010 Ph. D. Dissertation (Hengyang: Nanhua University) (in Chinese) [单健 2010 博士学位论文(衡阳:南华大学)]
[22] Le R C, Jia W Y, Wu Y P 2008 Acta Phys. Sin. 57 2457 (in Chinese) [乐仁昌, 贾文懿, 吴允平 2008 57 2457]
[23] Tan Y L, Xia D T, Zhao G Z 2008 Acta Phys. Sin. 9 5452 (in Chinese) [谭延亮, 肖德涛, 赵桂芝 2008 9 5452]
[24] Hong J Q, Le R C, He Z J, Ye Q Y, Chen J D, Zhou B Y 2009 Acta Phys. Sin. 58 5452 (in Chinese) [洪锦泉, 乐仁昌, 何志杰, 叶全意, 陈健俤, 周宝庸 2008 58 5350]
[25] Lu X T 2002 Nuclear physics (Beijing: Atomic Energy Press) p22 (in Chinese) [卢希庭 2002 原子核物理 (北京:原子能出版社) 第22页]
[26] Cai C G 2005 College Physics 8 81 (in Chinese) [蔡崇贵 2005 大学物理 8 81]
[27] Nozaki Y, Tsunogai S 1976 Earth and planetary Science letters 32 313
[28] Lambert G, Polian G, Sanak J 1982 Ann. Geophys 38 497
[29] Guebuem Kim, Najid Hussain, Hhomas M. Church 2000 Tellus 52B 74
[30] Yang W F, Huang Y P, Chen M 2006 Science in China (Series D: Earth Sciences) 1 81 (in Chinese) [杨伟锋, 黄奕普, 陈敏 2006 中国科学(D辑,地球科学) l 81]
[31] Masqué P, Sanchez-Cabeza J A, Bruach J M 2002 Continental Shelf Research 22 2127
[32] Dlugosz-Lisiecka M, Bem H 2012 Journal of Radioanalytical and Nuclear Chemistry 293 135
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[1] Obot C J 2002 Toxicology and Applied Pharmacology 184 98
[2] Auana K 2004 Science of the Total Environment 329 3
[3] Zhou X F 2010 Environment and Life 12 15 (in Chinese) [周霞芳 2010 环境与生活 12 15]
[4] Yu Y, Zhang Z J, Li Y P 2003 Journal of Environment and Health 20 359 (in Chinese) [于燕, 张振军, 李义平 2003 环境与健康杂志 20 359]
[5] Yang X X, Feng L H, Wei P 2012 Frontier Science 21 22 (in Chinese) [杨新兴, 冯丽华, 尉鹏 2012 前沿科学 21 22]
[6] Tan J H 2007 Ph. D. Dissertation (Guangzhou: Guangzhou Geochemical Research Institute of CAS) (in Chinese) [谭吉华 2007 博士学位论文(广州:中国科学院广州地球化学研究所)]
[7] Pope C A 1995 Am Respir Crit Care Med 151 669
[8] Dockery 1993 New England Journal of Medicine 329 1753
[9] Li X 2003 Nuclear Instruments and Methods in Physics Research 210 412
[10] Yue W S, Li X L, Liu J F 2006 Science of the Total Environment 368 916
[11] Jia Y Q, Zhao X H, Guo X B 2011 J. Environ Health 3 206 (in Chinese) [贾玉巧, 赵晓红, 郭新彪 2011 环境与健康杂志 3 206]
[12] Qian L, Yin Y, Tong Y Q, Wang W W, Wei Y X 2008 China Environmental Science 1 18 (in Chinese) [钱凌, 银燕, 童尧青, 王巍巍, 魏玉香 2008 中国环境科学 1 18]
[13] Kunzli N, Kaiser R, Medina S, Studnicka M 2000 Lancet 365 795
[14] Oboat C J, Morandib M T, Beebe T P 2002 Toxicology and Applied Pharmacology 184 98
[15] Baulig A, Sourdeval M, Meyer M, Marano F, Baeza Squiban A 2003 Toxicology in Vitro 17 567
[16] Kriston Aunan, Xiao Chuan. Pan 2004 Science of the Total Environment 329 3
[17] Baskaran M, Shaw G E 2001 Aerosol Science 32 443
[18] Ebaid Y Y, Khater A E M 2006 Journal of Radioanalytical and Nuclear Chemistry 270 609
[19] Papastefanou C 2006 Applied Radiation and Isotopes 64 93
[20] Shan J, Xiao D T, Liu W, Lin J, Wang G H, Wei N N, Zhou Q Z 2010 Acta Phys.Sin. 59 5358 (in Chinese) [单健, 肖德涛, 刘卫, 林俊, 王广华, 位楠楠, 周青芝 2010 59 5358]
[21] Shan J 2010 Ph. D. Dissertation (Hengyang: Nanhua University) (in Chinese) [单健 2010 博士学位论文(衡阳:南华大学)]
[22] Le R C, Jia W Y, Wu Y P 2008 Acta Phys. Sin. 57 2457 (in Chinese) [乐仁昌, 贾文懿, 吴允平 2008 57 2457]
[23] Tan Y L, Xia D T, Zhao G Z 2008 Acta Phys. Sin. 9 5452 (in Chinese) [谭延亮, 肖德涛, 赵桂芝 2008 9 5452]
[24] Hong J Q, Le R C, He Z J, Ye Q Y, Chen J D, Zhou B Y 2009 Acta Phys. Sin. 58 5452 (in Chinese) [洪锦泉, 乐仁昌, 何志杰, 叶全意, 陈健俤, 周宝庸 2008 58 5350]
[25] Lu X T 2002 Nuclear physics (Beijing: Atomic Energy Press) p22 (in Chinese) [卢希庭 2002 原子核物理 (北京:原子能出版社) 第22页]
[26] Cai C G 2005 College Physics 8 81 (in Chinese) [蔡崇贵 2005 大学物理 8 81]
[27] Nozaki Y, Tsunogai S 1976 Earth and planetary Science letters 32 313
[28] Lambert G, Polian G, Sanak J 1982 Ann. Geophys 38 497
[29] Guebuem Kim, Najid Hussain, Hhomas M. Church 2000 Tellus 52B 74
[30] Yang W F, Huang Y P, Chen M 2006 Science in China (Series D: Earth Sciences) 1 81 (in Chinese) [杨伟锋, 黄奕普, 陈敏 2006 中国科学(D辑,地球科学) l 81]
[31] Masqué P, Sanchez-Cabeza J A, Bruach J M 2002 Continental Shelf Research 22 2127
[32] Dlugosz-Lisiecka M, Bem H 2012 Journal of Radioanalytical and Nuclear Chemistry 293 135
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