AW: [ RadSafe ] AW: Gasteiner Heilstollen for holiday!?

[Rainer.Facius at dlr.de]

John:

 

Taken at face value you might speculate that increased (mainly) Radon exposure decreases lung cancer incidence (Badgastein vs. Salzburg). Yet the rather short paper does not present sufficient facts to make that case. However, I reproduce a reference which I gave you already recently which many years ago found already genotoxic evidence about what an underlying mechanism might be.

 

"It is suggested that the shape of the dose-response curve at these very low levels of radiation [at Badgastein] may result from the induction of repair enzymes." (already in 1979!)

Pohl-Rüling J, Fischer P, The dose-effect relationship of chromosome aberrations to alpha and gamma irradiation in a population subjected to an increased burden of natural radioactivity. Radiation Research 80(1979)61-81

 

BTW, Pohl-Rühling belongs to the luminaries in her field.

 

Regards, Rainer 

 


________________________________

Von: John Jacobus [mailto:crispy_bird at yahoo.com]
Gesendet: Mo 22.08.2005 18:54
An: Facius, Rainer; jimm at WPI.EDU; rad-sci-l at WPI.EDU; radsafe at radlab.nl
Betreff: Re: [ RadSafe ] AW: Gasteiner Heilstollen for holiday!?



Ranier,
Would you then conclude that increased annual doses of
radiation do not have a noticable effect on cancer
rates? 

--- Rainer.Facius at dlr.de wrote:

> Jim:
>
> 
>
> "The percentage of all cancer deaths relative to all
> deaths in
> Badgastein during the years 1947-2000 was 21%, the
> same value as in Bad
> Hofgastein [a nearby control area] despite the
> annual doses being three
> times higher. Furthermore, the number of all
> cancers, especially lung
> cancer, in Bad Gastein is lower than the expected
> value for the province
> of Salzburg, despite the annual doses being four
> times higher."
>
> 
>
> Pohl-Ruehling J, Hofmann W,
>
> Investigation of cancer mortality in the Gastein
> Valley, an area of
> high-level natural radiation.
>
> International Congress Series 1236(2002)27-29
>
> 
>
> Regards, Rainer
>
>
> ________________________________
>
> Von: owner-rad-sci-l at WPI.EDU
> [mailto:owner-rad-sci-l at WPI.EDU] Im Auftrag
> von Muckerheide, James
> Gesendet: Montag, 22. August 2005 16:19
> An: rad-sci-l at WPI.EDU; radsafe at radlab.nl
> Betreff: Gasteiner Heilstollen for holiday!?
>
>
>
> Friends,
>
> 
>
> In the 'Travel' section of the Irish Independent...
> :-)
>
> 
>
> ...which says nothing about the long-term lung
> cancer effect!
>
> 
>
> Regards, Jim Muckerheide
>
> ===================
>
> 
>
> DESTINATIONS : Build up your immunity on holidays
>
> Saturday August 20th 2005
>
>  . . .

+++++++++++++++++++
"Every now and then a man's mind is stretched by a new idea and never shrinks back to its original proportion." -- Oliver Wendell Holmes, Jr.

-- John
John Jacobus, MS
Certified Health Physicist
e-mail:  crispy_bird at yahoo.com


               
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