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Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China
Wang, Qidong1,2; Song, Jinming1; Li, Xuegang1; Yuan, Huamao1; Li, Ning1; 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
DOI10.1016/j.marpolbul.2015.05.035
收录类别SCI
语种英语
WOS记录号WOS:000360417800063
引用统计
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
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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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