Atmospheric pollutants transport tracks revealed from 131I, 137Cs, and 134Cs leaked from Fukushima accident and 7Be and 210Pb observed at Guiyang of China
Atmospheric pollutants transport tracks revealed from 131I, 137Cs, and 134Cs leaked from Fukushima accident and 7Be and 210Pb observed at Guiyang of China
复制标题
福岛事故泄漏的131I、137Cs、134Cs以及中国贵阳观测到的7Be、210Pb揭示的大气污染物迁移轨迹
DOI：
10.1007/s11631-014-0684-0
复制
发表时间：
2014-07
期刊：
影响因子：
--
通讯作者：
郑向东
中科院分区：
文献类型：
--
作者：
郑向东
2011年3月11日，日本本州岛发生里氏9.0级大地震，导致福岛核电站发生放射性泄漏，人工放射性核素（131 I、137 Cs、134 Cs）泄漏，并通过大气循环向全球迁移。本文报道了2011年3月17日至4月28日在贵阳观峰山进行的天然核素（7Be和210Pb）和人工核素（131I、137Cs和134Cs）地面放射性浓度的系统对比观测。在此期间，核素浓度的变化与它们的传输路径进行了分析与315小时的空气质量的轨迹初始化在贵阳地面500米以上。结果表明，福岛核泄漏污染物通过两条重要的途径向贵阳地区输送。在第一条路径中，第一波核污染物通过全球大气环流在较高高度的气团中从西向东输送。2011年3月24日至3月31日，核污染物几乎环绕地球一圈，大约10天到两周后，从中国西北地区侵入贵阳。在第二条路径中，福岛地区的核污染物于2011年4月7日至4月14日通过低层气团到达贵阳，这些低层气团受东北亚天气系统的挤压而向南移动，然后依次受到低纬地区东北气流和东南气流的影响。大气污染物的第一种传输途径是全球范围的，基于较高海拔的气团，第二种传输途径是东亚区域范围的，基于较低海拔的气团。
A massive earthquake measuring 9.0 on the Richter scale that occurred on March 11, 2011, on Honshu Island, Japan, caused radioactivity leakage from the Fukushima Nuclear Power Plant, which led to the leakage of artificial nuclides (131I, 137Cs, and 134Cs) and their global transportation by atmospheric circulation. This paper reports a systematic comparative observation on radioactive concentrations of natural nuclides (7Be and 210Pb) and artificial nuclides (131I, 137Cs, and 134Cs) at the surface level, measured in weekly continuous aerosol sampling at Mount Guanfeng, Guiyang, China, from March 17, 2011 to April 28, 2011. During this period, the variations in the nuclide concentrations associated with their transport paths were analyzed with 315 hour back-trajectories of air mass initialized 500 m above the surface level at Guiyang. The results show that the pollutants of nuclear leakage from the Fukushima accident were transported to the Guiyang region of China via two significant pathways. In the first pathway the first wave of nuclear pollutants were transported from west to east in air masses at higher altitudes via global atmospheric circulation. The nuclear pollutants encircled the Earth almost once and after about 10 days to two weeks, between March 24 and March 31, 2011, intruded Guiyang from the northwestern region of China. In the second pathway, the nuclear pollutants from the Fukushima region arrived at Guiyang between April 7 and April 14, 2011, via air masses at lower altitudes that moved southwards because of the squeezing of the northeast Asian weather system and then by the influence, in succession, of the northeastern and southeastern air currents in the low-latitude region. The first transport pathway for atmospheric pollutants is on a global scale and based on air masses at higher altitudes, and the second transport pathway is on an eastern Asia regional scale and based on the air masses at lower altitude.
登录
查看更多内容
影响因子：
--
作者：
Longbo Liu;Shan Wu;Junji Cao;F. Xie;Quanlin Shi;Changyun Zhang;Hanbing Tang;XiaoBin He;Rong‐Hua Zhang;Liyun Chen;G. Wei;Zhihong Zhang;Jiamei Zhang;Haijun Dang
通讯作者：
Longbo Liu;Shan Wu;Junji Cao;F. Xie;Quanlin Shi;Changyun Zhang;Hanbing Tang;XiaoBin He;Rong‐Hua Zhang;Liyun Chen;G. Wei;Zhihong Zhang;Jiamei Zhang;Haijun Dang
影响因子：
--
作者：
H. Lee;G. Wan;Xiangdong Zheng;C. Sanderson;B. Josse;Shilu Wang;Wei Yang;Jie Tang;Changsheng Wang
通讯作者：
H. Lee;G. Wan;Xiangdong Zheng;C. Sanderson;B. Josse;Shilu Wang;Wei Yang;Jie Tang;Changsheng Wang
影响因子：
2.3
作者：
Kim, Chang-Kyu;Byun, Jong-In;Yun, Ju-Yong
通讯作者：
Yun, Ju-Yong
影响因子：
--
作者：
G. Wan;Wei Yang;Wang Shilu;E. Wan;Fengchang Wu;S. N. Lee;Changsheng Wang;Ronggui Huang
通讯作者：
G. Wan;Wei Yang;Wang Shilu;E. Wan;Fengchang Wu;S. N. Lee;Changsheng Wang;Ronggui Huang
DOI：
10.11867/j.issn.1001-8166.2010.05.0492
发表时间：
2010-05
期刊：
Advances in Earth Science
影响因子：
--
作者：
万国江;郑向东;H. N. Lee;Z. Bai;万恩源;王仕禄;杨伟;苏菲;汤洁;王长生;黄荣贵;刘鹏
通讯作者：
万国江;郑向东;H. N. Lee;Z. Bai;万恩源;王仕禄;杨伟;苏菲;汤洁;王长生;黄荣贵;刘鹏