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Temporal Variation of Iodine Isotopes in the North Sea
He, P (He, Peng)[ 1,2 ]; Aldahan, A (Aldahan, Ala)[ 2,3 ]; Possnert, G (Possnert, Goran)[ 4 ]; Hou, XL (Hou, Xiaolin)[ 5,6 ]
2014-02-04
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume48Issue:3Pages:1419-1425
Subtype期刊论文
Abstract

Monitoring temporal variability of I-129 in the North Sea, a relatively large reservoir of radioactive discharges from the nuclear fuel reprocessing facilities, is vital for the environmental situation in the region. New information on concentration levels and distribution of I-129 and I-127 and their species forms (iodide and iodate) are gained here through sampling of surface water in 2010. The results show generally large spatial and temporal (compared to data from 2005) fluctuations of total I-129 and I-127, and iodide and iodate. In samples south of 53 degrees N, the level of I-127(-) in 2010 was generally comparable or higher than in 2005. The results also show total I-129 concentrations comparable in the south, but 2-8 times lower in the north, to the analyses made in 2005. Different from total I-129, the I-129(-)/(IO3-)-I-129 values in the northern part were 2 times higher in 2010 than values observed in 2005. These variations in total I-129 and I-127 and their species are related to coastal water offshore propagation and surface currents that are linked to long-term and seasonal climatic changes over the North Atlantic and North Sea. Inventory estimation shows that >90% of I-129 resides in the Southern and German Bights, which also suggests negligible contribution from the Sellafield facility discharges when compared with that from the La Hague. Variability in discharge rate from La Hague may also affect the distribution patterns of I-129 in the North Sea on the monthly scale.

DOI10.1021/es402047s
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9719
Collection加速器质谱中心
Corresponding AuthorHe, P (He, Peng)[ 1,2 ]
Affiliation1.Department of Geochemistry, Chengdu University of Technology, Chengdu 610059, China;
2.Department of Earth Sciences, Uppsala University, Villavagen 16, 752 36 Uppsala, Sweden;
3.Department of Geology, United Arab Emirates University, PO Box 15551, Al Ain, UAE;
4.Tandem Laboratory, Uppsala University, PO Box 529, 751 20 Uppsala, Sweden;
5.Center for Nuclear Technology, Technical University of Denmark, Risø Campus, DK-4000 Roskilde, Denmark;
6.Xi’an AMS Center, SKLLQG, Institute of Earth Environment, CAS, Xi’an 710075, China
Recommended Citation
GB/T 7714
He, P ,Aldahan, A ,Possnert, G ,et al. Temporal Variation of Iodine Isotopes in the North Sea[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2014,48(3):1419-1425.
APA He, P ,Aldahan, A ,Possnert, G ,&Hou, XL .(2014).Temporal Variation of Iodine Isotopes in the North Sea.ENVIRONMENTAL SCIENCE & TECHNOLOGY,48(3),1419-1425.
MLA He, P ,et al."Temporal Variation of Iodine Isotopes in the North Sea".ENVIRONMENTAL SCIENCE & TECHNOLOGY 48.3(2014):1419-1425.
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