[ RadSafe ] Radiation Protection X-ray Guidance document published

[Otto G. Raabe]

At 07:13 AM 4/5/2013, Tupin, Edward wrote:
>The text of the guidance is available as a pdf here:
>http://www.epa.gov/radiation/docs/federal/FGR14%202012-10-10.pdf

CONCERNING EPA-402R-10003
FEDERAL GUIDANCE REPORT NO. 14:

The next to last paragraph in the Preface on Page II,  (lines 71-83) 
is incorrect and
misleading because it assumes the faulty linear model of cancer 
induction risk.

See Otto G. Raabe: "Toward Improving Ionizing Radiation Safety Standards",
Health Physics 101:84-93; 2011, and "Ionizing Radiation Carcinogenesis" 2012,
open access online book chapter by Otto G. Raabe.  (E-mail me if you want
copies: ograabe at ucdavis.edu)

Small instantaneous doses of ionizing radiation may follow the linear 
promotion model
of the Atomic Bomb Survivor Studies, but that risk is extremely tiny, 
non-additive,
and only applies to the exposure of an organ at risk from some 
on-going biological
process that leads to cancer such as the irradiation of the lungs of a smoker.

Among the Atomic Bomb Survivors who received an instantaneous dose of 1 Sv,
five-year-old children who where not already smokers did not have a lifetime
increase in lung cancer while adult men who were likely smokers did.

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Prof. Otto G. Raabe, Ph.D., CHP
Center for Health & the Environment
University of California
One Shields Avenue
Davis, CA 95616
E-Mail: ograabe at ucdavis.edu
Phone: (530) 752-7754   FAX: (530) 758-6140
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