AW: Re: [ RadSafe ] IAEA DACs

[Franz Schönhofer]

Bob,

You wrote what I for some seconds thought to answer to James Salsman, but
what I did not, because it does not make any sense to confront him with
facts......

Franz

Franz Schoenhofer
PhD, MR iR
Habicherg. 31/7
A-1160 Vienna
AUSTRIA
phone -43-0699-1168-1319


> -----Ursprüngliche Nachricht-----
> Von: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] Im
> Auftrag von bobcherry at cox.net
> Gesendet: Mittwoch, 08. Februar 2006 22:01
> An: radsafe at radlab.nl
> Betreff: Re: Re: [ RadSafe ] IAEA DACs
> 
> May I suggest that one might calculate the actual mass-in-air
> concentration from the derived (radio)activity concentration using only
> the half-life of the radionuclide in question, its atomic mass number, and
> Avogadro's number as inputs (not counting unit conversions if the SI
> system in not in use)? One might find that for all but the longest-lived
> radionuclides (for example, uranium-238), the mass-in-air concentration is
> so low that the chemical toxicity is negligible in comparison with the
> radiological impact. At that point, one might become a little happier.
> 
> 
> >
> > From: James Salsman <james at bovik.org>
> > Date: 2006/02/08 Wed PM 12:53:09 EST
> > To: radsafe at radlab.nl
> > Subject: Re: [ RadSafe ] IAEA DACs
> >
> > >... referring to the DAC values given in Table A-II of the annex
> > > to IAEA Safety Standards Series No. RS-G-1.2  (Assessment of
> > > Occupational Exposure due to Intakes of Radionuclides) see:
> > >   http://www-pub.iaea.org/MTCD/publications/PDF/P077_scr.pdf
> >
> > I note with sadness that those derived air concentration exposure
> > limits are based only on radiotoxicity, completely ignoring the
> > chemical toxicity of the isotopes involved; many of which pose
> > a far greater chemical than radiological hazard.
> 
> _______________________________________________
> You are currently subscribed to the RadSafe mailing list
> 
> Before posting a message to RadSafe be sure to have read and understood
> the RadSafe rules. These can be found at:
> http://radlab.nl/radsafe/radsaferules.html
> 
> For information on how to subscribe or unsubscribe and other settings
> visit: http://radlab.nl/radsafe/