Journal Article10.1007/BF02385379
Fallout of7Be in Damascus City
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TL;DR: The annual total deposition of7Be was found to be 420 and 634 Bq·m−2 for 1995 and 1996, respectively, reflecting a Mediterranean climate where two well recognized periods are dominant (wet and dry) as mentioned in this paper.
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Abstract: Atmospheric fallout of7Be was measured over a 2 year period (January 1995–January 1997) at Damascus city (33 No, 727 m above sea level). The annual total deposition of7Be was found to be 420 and 634 Bq·m−2 for 1995 and 1996, respectively, reflecting a Mediterranean climate where two well recognized periods are dominant (wet and dry). The depositions in the wet periods were 303 Bq·m−2 and 517 Bq·m−2 for 1995 and 1996, respectively, while unexpected equal deposition rates in the two dry periods were found to be about 117 Bq·m−2. In addition, monthly deposition rate of7Be showed a maxima in February in 1995 and January for 1996. Moreover, a comparison has been set for our measurements and other data obtained at different locations in the world.
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Citations
Influence of rainfall on atmospheric deposition fluxes of 7Be and 210Pb in Mangaluru (Mangalore) at the Southwest Coast of India
M.P. Mohan,Renita Shiny D'Souza,S. Rashmi Nayak,Srinivas S. Kamath,Trilochana Shetty,K. Sudeep Kumara,Y. S. Mayya,Y. S. Mayya,N. Karunakara +8 more
TL;DR: In this paper, the authors measured the depositional fluxes of 7Be and 210Pb at Mangalore (12.82° N, 74.92° E) on the South West Coast region, which is one of the highest rainfall regions in India.
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Seasonal variability in 7Be depositional fluxes at Granada, Spain.
C. González-Gómez,M. Azahra,M. Azahra,J.J. López-Peñalver,A. Camacho-Garcı́a,T. El Bardouni,Hamid Boukhal +6 more
TL;DR: The study shows that precipitation primarily controls the 7Be depositional flux and plays a dominant role in the removal of 7Be from the troposphere.
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Cosmogenic 22Na, 7Be and terrestrial 137Cs, 40K radionuclides in ground level air samples collected weekly in Kraków (Poland) over years 2003–2006
Sylwia Błażej,Jerzy W. Mietelski +1 more
TL;DR: Low background gamma spectrometer with an Etruscan, 2500 years old lead shield and a muon veto detector were applied to study 22Na and 7Be activity concentration in ground level air aerosol samples collected weekly over the years 2003–2006 in Kraków, confirming seasonal variation of activity to be different for all the investigated radionuclides.
Short residence time and fast transport of fine detritus in the Judean Desert: Clues from 7Be in settled dust
TL;DR: In this article, the cosmogenic isotope 7Be (t 1/2 = 53.3d) was measured in sediments collected from dust traps deployed in the Judean Desert which is part of the Dead Sea drainage basin.
Global distribution of 7Be, 210Pb and, 210Po in the surface air (with Appendix A-E)
Bertil Persson
- 01 Jan 2016
TL;DR: In this article, partial least square regression was used to predict missing 7Be, 210Pb and 210Po values of air concentration or annual deposition, and the results from exploration of radioactivity exploration from the Arctic to the Antarctic during 1980 to 1996 are compiled with the results reported by other authors.
References
Beryllium-7 deposition at Fayetteville, Arkansas, and excess polonium-210 from the 1980 eruption of Mount St. Helens.
TL;DR: In this paper, Radiochemical measurements of 7Be were carried out for a total of 246 individual rain and snow samples collected at Fayetteville (36°N, 94°W), Arkansas, during the period between September 1979 and December 1984.
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Aerosol deposition velocities on the Pacific and Atlantic oceans calculated from7Be measurements
J.A. Young,W.B. Silker +1 more
TL;DR: The average flux of 7 Be across the ocean surface was calculated to be 0.027 atoms cm −2 s −1 which is probably not significantly greater than the worldwide average 7 Be flux across land and ocean surfaces of 0.022 atoms cm−2 s−1 calculated by Lal and Peters as discussed by the authors.
Fallout of 7Be in South Eastern Australia
Peter Wallbrink,Andrew S. Murray +1 more
TL;DR: In this article, atmospheric fallout of 7Be was measured in 83 rainfall events at Black Mountain, Australian Capital Territory, and the total annual fallout delivered to the site was 1030(±100) Bq m−2 which compares well with values determined in the northern hemisphere.
Atmospheric depositional characteristics of beryllium 7 and lead 210 along the southeastern Virginia coast
TL;DR: In this paper, the authors measured atmospheric depositional fluxes of {sup 7}Be and {sup 210}Pb simultaneously in wet-only and bulk deposition over a 29-month period (October 1982 through February 1985) in Norfolk, Virginia.
Prediction of marine atmospheric deposition rates using total 7Be deposition velocities
TL;DR: In this article, the authors collected samples of atmospheric particulate matter and total atmospheric deposition for a one-year period at a rural site on the Washington coast and analyzed them for 13 stable elements and 7 Be.