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Iodine isotopes (I-129 and I-127) in the hydrosphere of Qinghai-Tibet region and South China Sea
Yi, Peng1,2; Chen, Xuegao1,2; Wang, Zixia2; Aldahan, Ala3; Hou, Xiaolin4,5,6; Yu, Zhongbo1,2
Corresponding AuthorHou, Xiaolin(houxl@ieecas.cn)
2018-12-01
Source PublicationJOURNAL OF ENVIRONMENTAL RADIOACTIVITY
ISSN0265-931X
Volume192Pages:86-94
Abstract

The radioactive isotope I-129, with a half-life of 1.57 x 10(7) years, is widely used as a tracer to assess nuclear safety, to track environmental and geological events and to figure out the details of the stable iodine geochemical cycle. This work investigated the I-129 and I-127 distribution in water samples collected from the terrestrial (rivers, lakes and springs) and marine water systems (estuary and sea) in China. The measured I-129 concentrations of (1-51) x 10(6) atoms/L and I-129/I-127 ratios of (0.03-21) x 10(-10) shows the variability of I-129 level in the water systems. The local permafrost and seasonal frozen environment play a key role in groundwater recharge in the Qinghai-Tibet region, which is reflected in the I-129 distribution in surface water. The depth distribution of I-129 in the water column of the South China Sea reflects the effluence of different currents. The results also indicate that the hydrosphere of China contains one to three orders of magnitude less I-129 compared to those reported in Europe. Despite the large distance, the European nuclear fuel reprocessing facilities represent the major source of I-129 in the hydrosphere of China through atmospheric transport. The contribution of the Fukushima nuclear accident to I-129 levels in the hydrosphere of China was negligible.

KeywordIodine-129 Hydrosphere Permafrost Tibet China Sea
DOI10.1016/j.jenvrad.2018.06.005
WOS KeywordACCELERATOR MASS-SPECTROMETRY ; ANTHROPOGENIC I-129 ; TRANSPORT PROCESSES ; NORTH PACIFIC ; NATURAL I-129 ; MAJOR SOURCES ; ARCTIC-OCEAN ; BALTIC SEA ; WATERS ; LEVEL
Indexed BySCI
Language英语
Funding ProjectState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering[20165042512] ; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering[20155045612] ; Fundamental Research Funds for the Central Universities[2017810314] ; Fundamental Research Funds for the Central Universities[2016804214] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYZZ16_0277]
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering ; Fundamental Research Funds for the Central Universities ; Postgraduate Research & Practice Innovation Program of Jiangsu Province
WOS SubjectEnvironmental Sciences
WOS IDWOS:000446289100010
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/12414
Collection加速器质谱中心
中国科学院地球环境研究所
Corresponding AuthorHou, Xiaolin
Affiliation1.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China
2.Hohai Univ, Coll Hydrol & Water Resources, Nanjing, Jiangsu, Peoples R China
3.United Arab Emirates Univ, Dept Geol, Al Ain, U Arab Emirates
4.Chinese Acad Sci, Xian AMS Ctr, Xian 710075, Shaanxi, Peoples R China
5.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China
6.Tech Univ Denmark, Ctr Nucl Technol, DK-4000 Roskilde, Denmark
Recommended Citation
GB/T 7714
Yi, Peng,Chen, Xuegao,Wang, Zixia,et al. Iodine isotopes (I-129 and I-127) in the hydrosphere of Qinghai-Tibet region and South China Sea[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2018,192:86-94.
APA Yi, Peng,Chen, Xuegao,Wang, Zixia,Aldahan, Ala,Hou, Xiaolin,&Yu, Zhongbo.(2018).Iodine isotopes (I-129 and I-127) in the hydrosphere of Qinghai-Tibet region and South China Sea.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,192,86-94.
MLA Yi, Peng,et al."Iodine isotopes (I-129 and I-127) in the hydrosphere of Qinghai-Tibet region and South China Sea".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 192(2018):86-94.
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