[ RadSafe ] Radon hormesis suggested by a careful case-control study

John Jacobus crispy_bird at yahoo.com
Sat Mar 1 19:50:40 CST 2008

  I understand is that the LNT has been generally misapplied.  HOwever, my question was is the assumptions of the LNT hypothesis BASED on low LET studies?

"Otto G. Raabe" <ograabe at ucdavis.edu> wrote:
  At 11:25 AM 2/24/2008, John Jacobus wrote:
  My understanding is the the LNT hypothesis is based on Low LET studies, not high LET radiation studies.  So, it should not "work" for radon.  Rather, the radon limits were based on a separate set of studies involving miners.  ***************************************************
February 25, 2008

LNT is believed to apply to radiation induced cancer for all forms of ionizing radiation including high LET neutron, proton, and alpha radiation by the ICRP, the NCRP, and the U.S. EPA.

The EPA published Federal Guidance Report #13 based on LNT calculations which pretends to give the cancer risks per Bq for just about every radionuclide to which someone might be exposed including alpha emitting radionuclides like Ra-226 and Pu-239. Remarkably, none of the risks estimates in FGR #13 is based on any actual data (such as the human radium studies).


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

"Part of human nature resents change, loves equilibrium, while another part welcomes novelty, loves the excitement of disequilibrium. There is no formula for the resolution of this tug-of-war, but it is obvious  that absolute surrender to either of them invites disaster."
-J. Bartlet Brebner 

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