Re: Uranium Uptake Above 10 CFR 20 Limit

[brackett@bright.net]

That's not necessarily true.  The urinary excretion factor for the
insoluble (class Y) material will be about 2 orders of magnitude smaller
than that for very soluble (class D) in the time period being discussed,
which only means you need a larger intake before it's detected.  You need
to know which class you're dealing with before calculating the intake - it
will make a very big difference in the estimated intake activity and
subsequent dose.  Class W will fall in between D and Y, although the
excretion fraction is much closer to the class D values (at least up to 30
days; I didn't check beyond that).  It's not clear what class was used from
the notice, although it does seem to imply a soluble material was assumed.

Liz

At 01:26 PM 8/15/2000 -0500, Bill Lipton wrote:
>If it was detected in the urine, it must have been soluble.
>
>William Lorenzen wrote:
>
>>  the notice said U3O8!!!  Thats not soluble the last time I looked.
>>

******************************
  Elizabeth M. Brackett, CHP 
     Sr. Health Physicist     
     MJW Corporation, Inc.       
       (330) 644-3757        
  mailto:brackett@bright.net 
******************************
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