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Re: Risks of low level radiation - New Scientist Article



I was able to download a pdf version from this site:



http://www.pnas.org/cgi/reprint/98/25/14410.pdf



Jim



>From: maury <maury@WEBTEXAS.COM>

>Reply-To: maury <maury@WEBTEXAS.COM>

>To: Philippe Duport <pduport@uottawa.ca>

>CC: "Otto G. Raabe" <ograabe@UCDAVIS.EDU>, radsafe@list.vanderbilt.edu

>Subject: Re: Risks of low level radiation - New Scientist Article

>Date: Wed, 05 Dec 2001 11:32:09 -0600

>

>For one, thanks for taking the trouble to provide the instructive details. 

>I

>appreciate the access to data rather than imaginative rhetoric and wishful

>thinking,

>Sincerely,

>Maury Siskel         maury@webtexas.com

>=================================================

>Philippe Duport wrote:

>

> > Re Norm Cohen on PNAS (paper full ref : Zhou et al. Radiation risk to 

>low

> > fluencies of alpha particles may be greater than we thought, PNAS

> > 98(14410-14415, Dec 4 2001)

> >

> > Otto Raabe is right.  There is no indication of supra-linearity at low

> > dose - or dose rates of alpha radiation. Otto mentioned the radium dial

> > painters. There are also thresholds at about 2 Gy (40,000 mSv) in 

>Thorotrats

>

>----------------------  snipped ----------

>

> > of error into account are welcome.

> >

> > Sorry for giving so many details!

> >

> > Philippe Duport

> > International Centre for Low Dose Radiation Research

> > University of Ottawa

> > 555 King Edward Ave.

> > Ottawa, ON, Canada, K1N 6N5

> > Tel: (613) 562 5800, ext. 1270

> > pduport@uottawa.ca

> >

> > ----- Original Message -----

> > From: "Otto G. Raabe" <ograabe@UCDAVIS.EDU>

> > To: "Norman Cohen" <ncohen12@HOME.COM>; <radsafe@list.vanderbilt.edu>

> > -----------------  snipped  ------------

> > > Don't waste your time reading this New Scientist Article.

> > >

> > > The fact that high LET alpha radiation can produce unique multiple

> > > double-strand DNA lesions and the existence of bystander effects do 

>not

> > > imply anything about elevated risk. Cancer from alpha radiation is

> > -----------------  snipped  --------------------

> > > Prof. Otto G. Raabe, Ph.D., CHP

> > > Center for Health & the Environment

> > > (Street Address: Bldg. 3792, Old Davis Road)

>

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