Depositional characteristics of 7Be and 210Pb in Kuwaiti dust

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• 作者：A. Aba ; A. M. Al-Dousari ; A. Ismaeel
• 关键词：Dust fallout ; Temporal variations ; Arid areas ; Dry deposition
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：307
• 期：1
• 页码：15-23
• 全文大小：1,665 KB
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• 作者单位：A. Aba (1)
  A. M. Al-Dousari (2)
  A. Ismaeel (1)
  
  1. Energy and Building Research Center, Kuwait Institute for Scientific Research, P. O. Box 24885, 13109, Safat, Kuwait
  2. Environmental and Life Sciences Research Center, Kuwait Institute for Scientific Research, P. O. Box 24885, 13109, Safat, Kuwait
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780

文摘

Dust fallout fluxes of 210Pb and 7Be were measured in Kuwait during October 2009–August 2011. The annual average depositional fluxes of 210Pb and 7Be were 134 and 422 Bq m−2, respectively. The temporal variations of both radionuclides showed a maximum deposition during April of 2010 and 2011. A strong linear relationship between 7Be and 210Pb was found. The average dust depositional rate was about 50 mg m−2 h−1 with a maximum of 460 mg m−2 h−1, while the extreme value of 664 mg m−2 h−1 was recorded in March 2011 when a massive dust storm hit Kuwait. The 210Pb deposition has a strong correlation with dust deposition because of its terrestrial abundance. Whereas the 7Be a radionuclide shows a weaker correlation with dust deposition.