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Date: | Tue, 29 Jan 2008 22:26:19 -0500 |
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> The paper I cited (1) says that 100 kGy removed dioxins in solution
> so that liquid wastes did not exhibit dioxin toxicity.
Having things "in (liquid) solution" helps quite a bit, lowering the
amount of exposure required. Also, the wastes in the paper you cited
would be passed through the beam in a fairly compact stream, a much
easier case than the boxes of comb, where there are multiple layers of
wood, pollen/honey, maybe plastic foundation, and lots of wax are
between
the source and the targets.
> It is not just the photons themselves that break chemical bonds,
> but radicals generated from the solvent also cause an effect,
> amplifying the decay.
Exactly - ionization helps. Again, this makes things much easier
for the "in liquid" case. Not the case for boxes of comb, which are
"dry".
> So are you sure that it would take several thousand times the exposure
> level in the CCD experiments to make much impact on the level of
pesticides
> present?
In a word, yes. Perhaps as much as several hundred thousand times.
One wonders if the wax would melt from the waste heat before we could
be sure of a significant pesticide "kill" rate.
The gamma radiation can be thought of as a "bolt-action rife" as
compared
to the sun as a "machine gun" in terms of "rounds per minute" (photons
per
fixed interval of time). We are talking several orders of magnitude
difference.
There are also massive differences in the relative sizes of the targets.
Again, several orders of magnitude. "Football stadium" versus "mating
nuc"
in terms of size differences.
> I can't see anyone knowing exactly how compounds will behave
> in or on comb until they try it out and measure the result.
While I am confident that Mary Ann Fraiser and the team of pesticide
analysis folks doing the HPLC-MS work will not let this go untested for
the specific case at hand (boxes of comb in the specific beam[s]
utilized), I think that simple comparisons of the massive differences
between:
a) The flux of a gamma source versus that of the sun
b) The size of any chemical molecule versus even the smallest virus
Answer the question with authority.
As a sanity check, consider this - if irradiation of fruits and
veggies was a process that could be economically employed to
render the food "non-toxic" in terms of pesticides in addition
to killing pathogens, don't you think that this would have been
touted by at least one supermarket chain by now?
But if we consider Bob's report that the Hackenberg hives irradiated
and repopulated with Aussie packages "are in trouble":
http://listserv.albany.edu:8080/cgi-bin/wa?A2=ind0801d&L=bee-l&T=0&P=983
3
I'm not sure what to make of the claims made about the whole irradiation
process, and I'd really want to see the "control results" where they try
to culture the test plate bacteria after the irraditaion. I'm not even
sure that we can assume that the hives were properly "sterilized"
without something akin to proof.
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