Moriizumi Jun, Yamada Shinya, Xu Yang, Matsuki Satoru, Hirao Shigekazu, Yamazawa Hiromi
Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
Radiat Prot Dosimetry. 2014 Jul;160(1-3):196-201. doi: 10.1093/rpd/ncu080. Epub 2014 Apr 10.
The activity size distributions of indoor and outdoor radioactive aerosol associated with short-lived radon decay products were observed at Nagoya, Japan, for some periods from 2010 to 2012, following the indoor observation by Mostafa et al. [Mostafa, A. M. A., Tamaki, K., Moriizumi, J., Yamazawa, H. and Iida, T. The weather dependence of particle size distribution of indoor radioactive aerosol associated with radon decay products. Radiat. Prot. Dosim. 146: (1-3), 19-22 (2011)]. The tendency of smaller indoor activity median aerodynamic diameter (AMAD) after rainfalls showed in the previous study was not consistently obtained, while the consistent tendency of less indoor radioactive particles with diameters in the accumulation mode was observed again after rainfalls. The indoor aerosols showed activity size distributions similar to the outdoor ones. Non-radioactive aerosol particle concentrations measured with a laser particle counter suggested a somewhat liner relationship with AMAD.
继穆斯塔法等人[穆斯塔法，A.M.A.，玉置，K.，森泉，J.，山泽，H.和饭田，T.氡衰变产物相关的室内放射性气溶胶粒径分布与天气的关系。辐射防护剂量学。146：(1 - 3)，19 - 22(2011)]进行室内观测之后，于2010年至2012年的某些时段在日本名古屋观测了与短寿命氡衰变产物相关的室内和室外放射性气溶胶的活度大小分布。之前的研究显示降雨后室内活度中位空气动力学直径(AMAD)变小的趋势并不一致，但降雨后再次观察到累积模态下直径较小的室内放射性粒子的一致趋势。室内气溶胶的活度大小分布与室外相似。用激光粒子计数器测量的非放射性气溶胶粒子浓度与AMAD呈一定程度的线性关系。
