Re: textbook correct?

[xat@inel.gov (Alden Tschaeche)]

DAVE GILMORE wrote:
> 
> Hello Radsafers,
> Some of you are likely to be intersted in answering this question.  I
> am preparing a lecture for my genetics class on cancer.  The textbook
> I am using summarizes the chapter by saying that a number of external
> factors, "including medical and dental x-rays...play significant
> roles in cancer development."
>     Somehow, from the various threads I have been following, I get
> the feeling that such x-rays are of low dose, and low doses have no
> harmful effects.  Is there any evidence that the doses received from
> modern medical and dental x-rays play a "significant role in cancer
> development"?
>     Thanks for your opinions.
> 
> David F. Gilmore
> Assistant Professor of Environmental Biology    0  0
> P.O. Box 599, Dept. of Biological Sciences       __    "have a day"
> Arkansas State University
> State University, AR 72467
> dgilmore@navajo.astate.edu
> ph  501-972-3082    fax 501-972-2638

None.  The textbook is in error.  Particularly, diagnostic x-rays and
radionuclides in studies to determine if there are any cancer effects,
show none.  Even theraputic doses that are quite large do not present
definitive data that demonstrate the doses are carcinogenic.  Al
Tschaeche xat@inel.gov