AW: [ RadSafe ] dose RATE is the decisive variable
crispy_bird at yahoo.com
Tue Sep 5 13:00:46 CDT 2006
For "In the '90s DOE "turned over" responsibility for
the research to NIOSH . . . ," read no funding.
For "NIOSH, which 'decided' that this was 'very low
priority research,' read no funding.
--- "Muckerheide, Jim (CDA)"
<Jim.Muckerheide at state.ma.us> wrote:
> Hi Otto,
> I would also appreciate any of your papers that you
> have available in electronic form.
> Note, e.g., the human data for dose rates in Gy/d in
> your '96 paper:
> Also, below, your ref to HPJ 1983, Vol 44, is "Vol
> 44, Supplement 1" :-)
> (All, This ref is a 590-page proceedings of the Oct
> 1981 Int'l Conf in Lake Geneva WI, on "Radiobiology
> of Radium and the Actinides in Man."
> This was the beginning-of-the-end of the Argonne
> Center for Human Rdiobiology (CHR) program to
> monitor health effects of people with radium
> ingestion, primarily the radium dial painters. This
> progrram was started when Robley Evans retired from
> MIT in 1970. It was led by by Bob Rowland.
> The CHR program collected the data from the various
> US studies into one program; and it was chartered to
> identify and include additional cases who had
> ingested radium or worked in the radium industries,
> or ingested radium for medical or health purposes.
> The program was intended to be for the lifetime of
> the radium-exposed population, as with the a-bomb
> survivors, but it was a population that had
> long-term, and much greater, doses than the a-bomb
> survivors. This group was much more relevant to
> assessing chronic and fractionated low-dose-rate
> exposures for regulations for exposure of workers,
> medically-exposed patients and others. (As stated
> by an RERF research scientist at the 1997 IAEA
> Seville Conference, the dose response of the a-bomb
> survivors only applies to people potentially exposed
> to nuclear weapons, direct, essentially
> instantaneous, mixed very high energy neutron and
> gamma radiation.)
> However, the CHR program was terminated, starting in
> 1983 by stopping the recruitment of new cases, and
> later ('86?) stopping the medical followup of people
> in the program. The results were already indicating
> that the radium-exposed population would have better
> health and longevity than unexposed people to become
> statistically significant if DOE allowed the number
> of cases to continue to increase, and body-burdens
> established - there were a little less than 2,000
> measured out of about 4,000 that the CHR group had
> aggressively and successfully recruited. (Note:
> Evans' MIT program had had about 600 cases in 1970,
> with smaller numbers in the NJ and IL cohorts as the
> more substantial centers before CHR had gotten
> serious about finding radium-burdened cases,
> including exhumations - though such cases were not
> epidemiologically valid.)
> In the '90s DOE "turned over" responsibility for the
> research to NIOSH, which 'decided' that this was
> 'very low priority research,' because 'workers would
> never again be exposed to such radium doses.' :-)
> Regards, Jim
May we never confuse honest dissent with disloyal subversion.
Dwight D. Eisenhower
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird at yahoo.com
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