%0 Journal Article
%T Transport of the radioactivity leakage from the Japan Fukushima Nuclear Power Plant in 2011 spring: 131I and 137Cs as the tracers observed in Guiyang,China<br>2011年春季日本福岛核泄漏污染输送:贵阳131I和137Cs观测示踪分析
%A WAN Enyuan
%A ZHENG Xiangdong
%A WAN Guojiang
%A WANG Changsheng
%A <br>万恩源
%A 郑向东
%A 万国江
%A 王长生
%J 环境科学学报
%D 2012
%I 
%X The 9.0 Ritcher scale earthquake happened on March 11th,2011 in the Honshu Island,Japan had caused the radioactivity leakage from the Fukushima Nuclear Power Plant.The leaked artificial nuclides,131I and 137Cs,and their transport processes in the global atmosphere had drawn great public attention.In this paper,the concentrations of radioactive isotopes 7Be,210Pb,131I and 137Cs at the surface level in weekly aerosol samples obtained at the Guanfenshan Moutain,Guiyang,China from March 17th to April 28th,2011 were reported.The variations of the nuclide concentrations associated with their transport paths were analyzed with 315 h-backward trajectories initialized at 500m from the surface level at Guiyang.The results revealed that there were two evident transport paths for 131I and 137Cs from Fukushima to Guiyang.The first path,along with which radioactive pollution tracers reached Guiyang faster,was from the north-western China.These tracers transported eastward and took 10 days to two weeks to arrive the north-western China before they were detected on March 24th—31st in Guiyang.The second path extended south-eastward by the north-east Asian synoptic system at the beginning,then transported south-westward and north-westward before their arrivals on April 7th-14th in Guiyang.The first transport path of radioactive pollution tracer from the Fukushima Nuclear Power Plant to Guiyang was in the global scale while the second was in the East Asian regional scale.
%K fukushima
%K nuclear leakiness
%K 131I-137Cs-210Pb-7Be
%K aerosol transport
%K Guiyang<br>福岛
%K 核泄漏
%K 131I-137Cs-210Pb-7Be
%K 气溶胶传输
%K 贵阳
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=9B3C227A81E2A28CBB28396FE9011AFF&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=9CF7A0430CBB2DFD&sid=CB3D341D9E11A799&eid=0E097192A97BABD4&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=33