Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China

doi:10.1016/j.marpolbul.2015.05.035

	Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China
	Wang, Qidong1,2 ; Song, Jinming1 ; Li, Xuegang 1; Yuan, Huamao 1; Li, Ning 1; Cao, Lei1,2
	2015-08-15
发表期刊	MARINE POLLUTION BULLETIN
卷号	97 期号:1-2 页码:506-511
文章类型	Article
摘要	The radioactivity concentration of U-238, Th-232, Ra-226, K-40 and Cs-137 in soil samples collected in a coastal wetland of the Southern Laizhou Bay, China were measured. Mean activity concentrations were 54.4 +/- 11.7, 57.9 +/- 9.7, 28.6 +/- 4.3, 542 +/- 21, and 10.2 +/- 2.9 Bq kg(-1) dry weight for U-238, Th-232, Ra-226, K-40 and 137Cs, respectively. Statistical analyses suggested significant correlations between clay content and K-40 as well as Cs-137. The radium equivalent activity, the absorbed dose rate in the air at 1 m above the ground surface, and the external hazard index were calculated. The result showed that the radioactivity level in the wetland was in normal range. But sites along the river tended to have higher radiological hazard indexes. The vertical distributions of radionuclides in profiles illustrated some phenomena, such as vertical transport of U-238, disequilibrium between U-238 and Ra-226, and change in material sources. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Radionuclides Activity Concentration Radiological Hazard Vertical Distribution Soil Coastal Wetland
DOI	10.1016/j.marpolbul.2015.05.035
收录类别	SCI
语种	英语
WOS记录号	WOS:000360417800063
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/50418
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, IO, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qidong,Song, Jinming,Li, Xuegang,et al. Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China[J]. MARINE POLLUTION BULLETIN,2015,97(1-2):506-511.
APA	Wang, Qidong,Song, Jinming,Li, Xuegang,Yuan, Huamao,Li, Ning,&Cao, Lei.(2015).Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China.MARINE POLLUTION BULLETIN,97(1-2),506-511.
MLA	Wang, Qidong,et al."Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China".MARINE POLLUTION BULLETIN 97.1-2(2015):506-511.

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