[ RadSafe ] TFP - next questions

Thu Dec 29 12:51:14 CST 2005

Bob et al

The concentrations of radium in bones is 260 mBq/Kg Ra-226 in 31 countries
and 39-230  mBq/Kg Ra-228 in the US. This and other numbers are in UNSCEAR
at http://www.unscear.org/reports/2000_1.html

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-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl]On
Behalf Of Bob Shannon
Sent: December 29, 2005 8:42 AM
To: 'RADSAFE'
Subject: RE: [ RadSafe ] TFP - next questions

I have taken some time to look through the Radsafe archives but to no avail.
So I would like to pose this question again.

At some point several years ago, there was a semi-detailed description of
the method being used by the tooth fairy project to analyze teeth for Sr.
Can anyone point me to this post?

Thanks!

Bob Shannon
Kaiser Analytical Management Services
303-432-1137

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Baratta, Edmond J
Sent: Thursday, December 29, 2005 6:57 AM
To: 'Franz Schönhofer'; RADSAFE
Subject: RE: [ RadSafe ] TFP - next questions

Good morning Franz:

I had asked that question earlier about Strontium-90.  The amount of
Radium-226 in foods (where it would be ingested from) was been shown to be
<0.037 Bq/kg).  The U.S. Public Health Service in the 60's (1964-1967) did
Studies on Diets of children.  It was reported in "Evaluation of Radium-226
in Total Diet Samples, June 1964 to July 1967" U.S. Public Health Service,
Radiological Health Data and Reports 6:371-377 (1969).  Also similar work
was done by Fisenne, J.M.and H. W. Walker "Radium-226 in the Diet in two
Cities", U.S. AEC Report HASL-24 (1970).  Strontium-90 in bones was also
done during that time.  The samples were taken from accident victims.  The
samples were much larger and it did show the trend that younger person's
Strontium-90 content was higher than older ones.  The article was
"Strontium-90 in Human Bone from infancy to Adulthood 1962-1963" by Gaffney,
G.W. et al, Radiological Health Data and Reports, 7:383-386 (1966).  This
was during the during the above ground weapons testing days. The samples of
infants teeth are very small and unless they are composited, it is difficult
to see how they could measure these low levels.

Ed

Edmond J. Baratta
Radiation Safety Officer
Tel. No. 781-729-5700 x 728
Fax:  781-729-3593
edmond.baratta at fda.gov

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Franz Schönhofer
Sent: Wednesday, December 28, 2005 3:01 PM
To: RADSAFE
Subject: [ RadSafe ] TFP - next questions

Dear RADSAFErs,

Thanks to those who gave me hints and links which help me with my first
questions. The next question is, whether anybody has data available about
the concentration of Radium-226 (and Ra-228) in human teeth and/or bones.
One of the links showed, that actually the Ra-226 was not separated contrary
to what I had in memory. The description of the analytical process in one of
the links was further obscured by false information about the instrument
used (Quantulus). Therefore I would like to estimate what the error in Sr-90
concentration could be when not taking Ra-226 into account. Of course I
know, that the Ra-226 concentration will depend on the environment - as well
as the Sr-90 concentration.

One more question to the US-American RADSAFErs: I find a Joseph J. Mangano,
MPH MBA  not only as the National Coordinator of the RPHP website, but also
as an author of "Radioactive Strontium-90 in baby teeth of New Jersey
children and the link with cancer: A special report. I know that MBA means
"Master of Business Administration", but what does MPH mean? Master of
Physics? Master of Philosophy? That MBA does not really point towards a
scientific background seems to be clear, but does MPH?

Thanks again for a very fast reply.

Franz

Franz Schoenhofer

PhD, MR iR

Habicherg. 31/7

A-1160 Vienna

AUSTRIA

phone (international) -43-699-1168-1319

phone (national) 0699-1168-1319

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