DOI: 10.1016/j.marpolbul.2015.05.035
Scopus记录号: 2-s2.0-84956592326
论文题名: Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China
作者: Wang Q. ; Song J. ; Li X. ; Yuan H. ; Li N. ; Cao L.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 97, 期: 2018-01-02 起始页码: 506
结束页码: 511
语种: 英语
英文关键词: Activity concentration
; Coastal wetland
; Radiological hazard
; Radionuclides
; Soil
; Vertical distribution
Scopus关键词: Cesium
; Hazards
; Radiation
; Radioactivity
; Radioisotopes
; Radiometry
; Radium
; Soil pollution
; Soils
; Activity concentration
; Coastal wetlands
; Environmental radionuclides
; Mean activity concentrations
; Radioactivity concentration
; Radiological hazard
; Radium equivalent activity
; Vertical distributions
; Wetlands
; cesium 137
; potassium 40
; radium 226
; thorium 232
; uranium 238
; cesium
; potassium
; radioisotope
; radium
; soil pollutant
; thorium
; uranium
; coastal wetland
; concentration (composition)
; pollutant source
; radioactivity
; radionuclide
; soil pollution
; vertical distribution
; absorption
; Article
; China
; clay
; coastal waters
; concentration (parameters)
; dry weight
; environmental radioactivity
; pollution transport
; radiation hazard
; radioactive contamination
; water pollution
; wetland
; analysis
; bay
; procedures
; radiation monitoring
; river
; soil pollutant
; wetland
; China
; Laizhou Bay
; Shandong
; Bays
; Cesium Radioisotopes
; China
; Potassium Radioisotopes
; Radiation Monitoring
; Radioisotopes
; Radium
; Rivers
; Soil Pollutants, Radioactive
; Thorium
; Uranium
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The radioactivity concentration of 238U, 232Th, 226Ra, 40K, and 137Cs 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±2.9Bqkg-1 dry weight for 238U, 232Th, 226Ra, 40K and 137Cs, respectively. Statistical analyses suggested significant correlations between clay content and 40K as well as 137Cs. The radium equivalent activity, the absorbed dose rate in the air at 1m 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 238U, disequilibrium between 238U and 226Ra, and change in material sources. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86179
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology (IO), Chinese Academy of Sciences (CAS), Qingdao, China; Graduate University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Wang Q.,Song J.,Li X.,et al. Environmental radionuclides in a coastal wetland of the Southern Laizhou Bay, China[J]. Marine Pollution Bulletin,2015-01-01,97(2018-01-02)