RE: Radioactive dose from smoking

[Peter Sandgren <peter.sandgren@po.state.ct.us>]

If I understand correctly the following is alpha(?)
> dose of 0.8 to 1.0 rad per year to small areas of the bronchial epithelium 
> at segmental bifurcations

That would explain the quality factor 
>(They apply a quality factor of 20 and estimate 
> an annual dose equivalent of 16 rem (160 mSv)

Can you explain what the following means in terms of dose equivalent:  
>Applying a tissue weighting 
> factor of 0.8 to the effected part of the lung, an effective dose 
> equivalent of 1,300 mrem (13 mSv) is estimated.  

Is this a whole body dose?  Thank you.

Peter Sandgren
Training Division
Connecticut Office of Emergency Management

On Thursday, February 01, 2001 8:16 AM, Dave Derenzo [SMTP:dave@uic.edu] wrote:
> NCRP 95 states in section 3.2.1 that a 30 cigarette a day smoker receives a 
> dose of 0.8 to 1.0 rad per year to small areas of the bronchial epithelium 
> at segmental bifurcations.  They apply a quality factor of 20 and estimate 
> an annual dose equivalent of 16 rem (160 mSv).  Applying a tissue weighting 
> factor of 0.8 to the effected part of the lung, an effective dose 
> equivalent of 1,300 mrem (13 mSv) is estimated.  They go on to say that 
> they question the value of the quality and weighting factors and they do 
> not wish to use it to make an actual estimate of dose equivalent or ede.
> 
> At 01:02 AM 2/1/01, you wrote:
> >Another good reference is:
> >
> >F. T. Cross
> >"Radioactivity in Cigarette Smoke Issue"
> >Health Physics Vol. 46, No. 1 (January), pp. 205-208, 1984
> >
> >Kind regards
> >
> >Peter Hewing
> >Siemens Power Generation
> >Karlstein, Germany
> >Phone +49 6188 780251
> >Fax +49 6188 780690
> >e-mail:Peter.Hewing@off1.siemens.de
> >
> >
> > > -----Ursprungliche Nachricht-----
> > > Von: LancerGT@aol.com [mailto:LancerGT@aol.com]
> > > Gesendet am: Mittwoch, 31. Januar 2001 19:13
> > > An: Multiple recipients of list
> > > Betreff: Re: Radioactive dose from smoking
> > >
> > >
> > > I have, over the years on various DOE projects, read
> > > references to the fact
> > > that smoking  results in an equivilent dose to the heart/lung
> > > on the order 5
> > > - 8 rem annually for a 2 pack a day smoker. Does anyone know what the
> > > specific source of such exposures would be and from where
> > > this information
> > > might have been obtained?
> > >
> > > Thanks for any help.
> > >
> > > David Lawrence
> > > Montclair NJ
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> 
> Dave Derenzo, MPH  (dave@uic.edu)
> Associate Director for Radiation Safety
> University of Illinois at Chicago
> Radiation Safety Section, MC932
> 820 S. Wood St., Chicago, IL 60612-7314
> Voice:(312)996-7429  Fax:(312)996-8776
> URL:  http://www.uic.edu/depts/envh
> 
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information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html