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I-129 and its species in the East China Sea: level, distribution, sources and tracing water masses exchange and movement
Liu, Dan1,2; Hou, Xiaolin1,3; Du, Jinzhou4; Zhang, Luyuan1; Zhou, Weijian1
2016-11-16
Source PublicationSCIENTIFIC REPORTS
Volume6Issue:2016
SubtypeArticle
AbstractAnthropogenic I-129 as a long-lived radioisotope of iodine has been considered as an ideal oceanographic tracer due to its high residence time and conservative property in the ocean. Surface water samples collected from the East China Sea (ECS) in August 2013 were analyzed for I-129, I-127 and their inorganic chemical species in the first time. The measured I-129/I-127 ratio is 1-3 orders of magnitude higher than the pre-nuclear level, indicating its dominantly anthropogenic sources. Relatively high I-129 levels were observed in the Yangtze River and its estuary, as well as in the southern Yellow Sea, and I-129 level in seawater declines towards the ECS shelf. In the open sea, I-129 and I-127 in surface water exists mainly as iodate, while in Yangtze River estuary and some locations, iodide is dominated. The results indicate that the Fukushima nuclear accident has no detectable effects in the ECS until August 2013. The obtained results are used for investigation of interaction of various water masses and water circulation in the ECS, as well as the marine environment in this region. Meanwhile this work provides essential data for evaluation of the possible influence of the increasing NPPs along the coast of the ECS in the future.
WOS HeadingsScience & Technology
DOI10.1038/srep36611
WOS KeywordIODINE ISOTOPES ; MAJOR SOURCES ; NORTH-SEA ; SEAWATER ; FUKUSHIMA ; IODATE ; SPECIATION ; REDUCTION ; TRANSPORT ; PACIFIC
Indexed BySCI
Language英文
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000388082000001
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5643
Collection加速器质谱中心
Affiliation1.Chinese Cademy Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tech Univ Denmark, Ctr Nucl Technol, Riso Campus, DK-4000 Roskilde, Denmark
4.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
Recommended Citation
GB/T 7714
Liu, Dan,Hou, Xiaolin,Du, Jinzhou,et al. I-129 and its species in the East China Sea: level, distribution, sources and tracing water masses exchange and movement[J]. SCIENTIFIC REPORTS,2016,6(2016).
APA Liu, Dan,Hou, Xiaolin,Du, Jinzhou,Zhang, Luyuan,&Zhou, Weijian.(2016).I-129 and its species in the East China Sea: level, distribution, sources and tracing water masses exchange and movement.SCIENTIFIC REPORTS,6(2016).
MLA Liu, Dan,et al."I-129 and its species in the East China Sea: level, distribution, sources and tracing water masses exchange and movement".SCIENTIFIC REPORTS 6.2016(2016).
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