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Re: How much plutonium?????
Table 7.7 of NCRP Report 94 gives the activity concentration of K-40 in
various tissues of an adult male. Figure 7.1 shows how it also varies with
age. Soft tissue average about 60 Bq/kg, bone about 15 Bq/kg.
Bill Goldsmith
Radian Remediation Services
865.220.8265
bill_goldsmith@urscorp.com
Bernard L Cohen
<blc+@pitt.edu> To: Multiple recipients of list
Sent by: <radsafe@romulus.ehs.uiuc.edu>
radsafe@romulus.eh cc:
s.uiuc.edu Subject: Re: How much plutonium?????
05/08/2000 12:14
Please respond to
radsafe
On Mon, 8 May 2000, Michael McNaughton wrote:
>
> There are about 100 radioactive decays per second in the body, mostly
from
> natural potassium-40.
--I couldn't rapidly find the amount of potassium in the human
body, but meat has about 100 K40 decays per second per kilogram. Assuming
the percentage of potassium is similar in meat and in the human body, and
the mass of the body is 75 kg, there are 7500 decays per second in the
body from K40.
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