Anthropogenic I-129 in the sediment cores in the East China sea: Sources and transport pathways

	Anthropogenic I-129 in the sediment cores in the East China sea: Sources and transport pathways
	Zhao, X (Zhao, Xue 1,5; Hou, XL (Hou, Xiaolin)1,2,4; Du, JZ (Du, Jinzhou)3; Fan, YK (Fan, Yukun)1
刊名	ENVIRONMENTAL POLLUTION
	2019-02
卷号	245 页码:443-452
关键词	NUCLEAR ACTIVITIES ATMOSPHERIC FALLOUT WATER MASSES RECORD I-129/I-127 ACCIDENT PU CIRCULATION (129)IODINE ISOTOPES
产权排序	1
英文摘要	With the increased numbers of nuclear power plants constructed along the east coast of China, it is important to know radioactive sources and transport pathways between land and sea, in order to better understand the impact of these nuclear facilities to the marine environment. Two sediment cores collected from the East China Sea dated to 1959-2010 were analyzed for long-lived radioactive I-129 and stable I-127. It was observed that I-129 levels (I-129/I-127 ratio of (15.0-75.0) x 10(-12)) were significantly increased compared to the pre-nuclear value (I-129/I-127 = 1.5 x 10(-12)). Some I-129 peaks were observed in layers of 1959, 1966, 1971 and 1976 (1977), corresponding to the atmospheric nuclear weapon tests at Pacific Proving Grounds and Lop Nor. The high values of I-129 after the late 1970s are attributed to the releases from the European reprocessing plants. In addition to ocean current transport, the atmospheric dispersion through the interaction of the Westerlies with East Asia monsoon is the important pathway of large-scale transport of pollutants from high latitude West Europe to middle latitude East Asia. Riverine input is the main transport pathway of radioactive pollutants released from Lop Nor to the East China Sea through the atmospheric dispersion, deposition and runoff processes.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/10967]
专题	地球环境研究所_加速器质谱中心
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Xian AMS Ctr,Inst Earth Environm, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Shaanxi, Peoples R China; 2.Tech Univ Denmark, Ctr Nucl Technol, Riso Campus, DK-4000 Roskilde, Denmark; 3.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China; 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266100, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, X (Zhao, Xue,Hou, XL ,Du, JZ ,et al. Anthropogenic I-129 in the sediment cores in the East China sea: Sources and transport pathways[J]. ENVIRONMENTAL POLLUTION,2019,245:443-452.
APA	Zhao, X ,Hou, XL ,Du, JZ ,&Fan, YK .(2019).Anthropogenic I-129 in the sediment cores in the East China sea: Sources and transport pathways.ENVIRONMENTAL POLLUTION,245,443-452.
MLA	Zhao, X ,et al."Anthropogenic I-129 in the sediment cores in the East China sea: Sources and transport pathways".ENVIRONMENTAL POLLUTION 245(2019):443-452.