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Water Circulation and MarineEnvironment in the Antarctic Tracedby Speciation of 129I and 127I
Xing,S(Xing,Shan)1; Hou,XL(Hou,Xiaolin)1,2; Aldahan,A(Aldahan,Ala)3,4; Possnert,G(Possnert,Go¨ran)5; Shi,KL(Shi,Keliang)2,6; Yi,P(Yi,Peng)4,7; Zhou,WJ(Zhou,Weijian)1; Hou,Xiaolin
2017-10
Source PublicationScientific Reports
Volume7Issue:1
Subtype期刊论文
AbstractEmissions of anthropogenic ¹²⁹I from human nuclear activities are now detected in the surface water of the Antarctic seas. Surface seawater samples from the Drake Passage, Bellingshausen, Amundsen, and Ross Seas were analyzed for total ¹²⁹I and ¹²⁷I, as well as for iodide and iodate of these two isotopes. The variability of ¹²⁷I and ¹²⁹I concentrations and their species (¹²⁷I⁻/¹²⁷IO3⁻, ¹²⁹I⁻/¹²⁹IO3⁻) suggest limited environmental impact where ((1.15–3.15) × 10⁶ atoms/L for ¹²⁹I concentration and (0.61–1.98) × 10⁻¹¹ for ¹²⁹I/¹²⁷I atomic ratios are the lowest ones compared to the other oceans. The iodine distribution patterns provide useful information on surface water transport and mixing that are vital for better understanding of the Southern Oceans effects on the global climate change. The results indicate multiple spatial interactions between the Antarctic Circumpolar Current (ACC) and Antarctic Peninsula Coastal Current (APCC). These interactions happen in restricted circulation pathways that may partly relate to glacial melting and icebergs transport. Biological activity during the warm season should be one of the key factors controlling the reduction of iodate in the coastal water in the Antarctic.
DOI10.1038/s41598-017-07765-w
Indexed BySCI
Project Number2015FY110800 ; 41040016
Language英语
Funding OrganizationMinistry of Science and Technology of China ; Ministry of Science and Technology of China ; State Key Laboratory of Loess and Quaternary Geology and the National Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology and the National Science Foundation of China
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5630
Collection加速器质谱中心
Corresponding AuthorHou,Xiaolin
Affiliation1.1State Key Laboratory of Loess and Quaternary Geology, Shaanxi Key Laboratory of Accelerator Mass SpectrometryTechnology and Application, Xi’an AMS Center, Institute of Earth Environment, Chinese Academy of Sciences,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, 17511, United Arab Emirates
4.Department of Earth Sciences, Uppsala University, Uppsala, 75120, Sweden
5.Tandem Laboratory, UppsalaUniversity, Uppsala, 75120, Sweden
6.School of Nuclear Science and Technology, Lanzhou University, Lanzhou,73000, China
7.College of Hydrology & Water Resources, Hohai University, Nanjing, 210098, China
Recommended Citation
GB/T 7714
Xing,S,Hou,XL,Aldahan,A,et al. Water Circulation and MarineEnvironment in the Antarctic Tracedby Speciation of 129I and 127I[J]. Scientific Reports,2017,7(1).
APA Xing,S.,Hou,XL.,Aldahan,A.,Possnert,G.,Shi,KL.,...&Hou,Xiaolin.(2017).Water Circulation and MarineEnvironment in the Antarctic Tracedby Speciation of 129I and 127I.Scientific Reports,7(1).
MLA Xing,S,et al."Water Circulation and MarineEnvironment in the Antarctic Tracedby Speciation of 129I and 127I".Scientific Reports 7.1(2017).
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