[ RadSafe ] Re: DU Cleanup

[cehn at aol.com]

 Dan's calculation is interesting.  I have a limited amount of data on natural U-238 in Kuwaiti desert sand (less than 2 pCi/g).  This is quite close to the 5 mg/Kg that he uses.  Does anyone have good data on background concentrations in Middle East/Persian Gulf region sand?
 
--Joel I. Cehn, CHP
joelc at alum.wpi.edu
 
 
-----Original Message-----



Dear Group:  This is what I intended to send....  Sorry that the table got
decomposed.

   Estimated Natural Uranium Endowment in a Typical Backyard -  5 mg/Kg U
======Soil Volume========  ========Soil Weight========= ==U Endowment==
  X     Y      Z     Vol    Bulk Density Tonnes   Kg     Percent   U
  m     m      m     m^3       g/cc      Soil    Soil       U      Kg
 20.0  20.0  0.25   100.0      1.50       150   150,000  0.0005%  0.75


  Estimated Natural Uranium Endowment in Soils Overlying Black Shales or
Phosphorites -  125 mg/Kg - e.g. Chattanooga Shale, USA;  Kolm Shale, Sweden
======Soil Volume========  ========Soil Weight======== ===U Endowment==
  X     Y      Z     Vol   Bulk Density Tonnes   Kg     Percent    U
  m     m      m     m^3      g/cc       Soil   Soil       U       Kg
 20.0  20.0  0.25   100.0     1.50       150   150,000  0.0125%   18.75

Dan ii

Dan W. McCarn, Geologist
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