IEECAS OpenIR  > 加速器质谱中心
Iodine-129 in Snow and Seawater in the Antarctic: Level and Source
Xing,S(Xing,Shan)[1,5]; Hou,XL(Hou,Xiaolin)[1,2]; Aldahan,A(Aldahan,Ala)[3,6]; Possnert,G(Possnert,Göran)[4]; Shi,KL(Shi,Keliang)[2,7]; Yi,P(Yi,Peng)[3,8]; Zhou,WJ(Zhou,Weijian)[1]
2015-05-05
Source PublicationEnvironmental Science & Technology
Volume49Issue:11Pages:6691-6700
Subtype期刊论文
Abstract

Anthropogenic 129I has been released to the environment in different ways and chemical species by human nuclear activities since the 1940s. These sources provide ideal tools to trace the dispersion of volatile pollutants in the atmosphere. Snow and seawater samples collected in Bellingshausen, Amundsen, and Ross Seas in Antarctica in 2011 were analyzed for 129I and 127I, including organic forms; it was observed that 129I/127I atomic ratios in the Antarctic surface seawater ((6.1−13) × 10−12) are about 2 orders of magnitude lower than those in the Antarctic snow ((6.8−9.5) × 10−10), but 4−6 times higher than the prenuclear level (1.5 × 10−12), indicating a predominantly anthropogenic source of 129I in the Antarctic environment. The 129I level in snow in Antarctica is 2−4 orders of magnitude lower than that in the Northern Hemisphere, but is not significantly higher than that observed in other sites in the Southern Hemisphere. This feature indicates that 129I in Antarctic snow mainly originates from atmospheric nuclear weapons testing from 1945 to 1980; resuspension and re-emission of the fallout 129I in the Southern Hemisphere maintains the 129I level in the Antarctic atmosphere. 129I directly released to the atmosphere and re-emitted marine discharged 129I from reprocessing plants in Europe might not significantly disperse to Antarctica.

DOI10.1021/acs.est.5b01234
Indexed BySCI
Language英语
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9481
Collection加速器质谱中心
Affiliation1.Xi’an AMS Center, SKLLQG, Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Institute ofEarth Environment, CAS, Xi’an 710061, China;
2.Technical University of Denmark, Center for Nuclear Technologies, Risø Campus, Roskilde 4000, Denmark;
3.Department of Geology, United Arab Emirates University, Al Ain, United Arab Emirates;
4.Tandem Laboratory, Uppsala University, Uppsala 75120, Sweden;
5.University of Chinese Academy of Science, Beijing 100049, China;
6.Department of Earth Sciences, Uppsala University, Uppsala 75120, Sweden;
7.School of Nuclear Science and Technology, Lanzhou University, 73000, Lanzhou, China;
8.College of Hydrology & Water Resources, Hohai University, 210098, Nanjing, China
Recommended Citation
GB/T 7714
Xing,S,Hou,XL,Aldahan,A,et al. Iodine-129 in Snow and Seawater in the Antarctic: Level and Source[J]. Environmental Science & Technology,2015,49(11):6691-6700.
APA Xing,S.,Hou,XL.,Aldahan,A.,Possnert,G.,Shi,KL.,...&Zhou,WJ.(2015).Iodine-129 in Snow and Seawater in the Antarctic: Level and Source.Environmental Science & Technology,49(11),6691-6700.
MLA Xing,S,et al."Iodine-129 in Snow and Seawater in the Antarctic: Level and Source".Environmental Science & Technology 49.11(2015):6691-6700.
Files in This Item:
File Name/Size DocType Version Access License
Iodine-129 in Snow a(2648KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xing,S(Xing,Shan)[1,5]]'s Articles
[Hou,XL(Hou,Xiaolin)[1,2]]'s Articles
[Aldahan,A(Aldahan,Ala)[3,6]]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xing,S(Xing,Shan)[1,5]]'s Articles
[Hou,XL(Hou,Xiaolin)[1,2]]'s Articles
[Aldahan,A(Aldahan,Ala)[3,6]]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xing,S(Xing,Shan)[1,5]]'s Articles
[Hou,XL(Hou,Xiaolin)[1,2]]'s Articles
[Aldahan,A(Aldahan,Ala)[3,6]]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.