Risks of low level radiation - New Scientist Article

["Jim Nelson" <nelsonjima@HOTMAIL.COM>]

Otto,



I think Norm is correct.  Maybe you should read the article before passing 

judgement.  It is not in the New Scientist, but rather the Proceedings of 

the National Academy of Sciences (vol 98, p 14,410.  No wonder Norm 

questions the objectivity of radsafers.



Did Norm perform ecologic studies we do not know about?  You must not be 

talking about Bernie's studies since Bernie said you can not use his 

ecologic studies to assess radon risk. Do you truly believe the ecologic 

studies have more validity than the BEIR VI or the Iowa Study? 

http://www.epa.gov/iaq/radon/iowastudy.html.





Jim







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

>Reply-To: "Otto G. Raabe" <ograabe@UCDAVIS.EDU>

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

><radsafe@list.vanderbilt.edu>

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

>Date: Tue, 04 Dec 2001 18:45:32 -0800

>

>December 4, 2001

>Davis, CA

>

>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

>well-known to be a highly non-linear, threshold-like phenomenon that is

>only effective at very high doses (Evans, et al., radium-226 papers). In

>addition most normal background radiation exposure is associated with high

>energy alpha radiation to the lung tissues from radon decay products, and

>there is apparently little health risk from these exposures (Cohen's

>ecological studies).

>

>Otto

>

>**********************************************

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

>Center for Health & the Environment

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

>University of California, Davis, CA 95616

>E-Mail: ograabe@ucdavis.edu

>Phone: (530) 752-7754   FAX: (530) 758-6140

>***********************************************

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