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- Path: sparky!uunet!dtix!darwin.sura.net!seismo!skadi!stead
- From: stead@skadi.CSS.GOV (Richard Stead)
- Newsgroups: sci.energy
- Subject: Re: Notch another one up for the Greennazis
- Message-ID: <51532@seismo.CSS.GOV>
- Date: 20 Nov 92 21:46:14 GMT
- References: <1992Nov19.145341.5393@inel.gov> <51516@seismo.CSS.GOV> <1ejanuINNh44@gap.caltech.edu>
- Sender: usenet@seismo.CSS.GOV
- Lines: 43
- Nntp-Posting-Host: skadi.css.gov
-
- In article <1ejanuINNh44@gap.caltech.edu>, carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick) writes:
- > In article <51526@seismo.CSS.GOV>, stead@skadi.CSS.GOV (Richard Stead) writes:
- > =Takes into account alpha damage. Pu is a hazardous heavy metal, but you are
- > =correct that its heavy metal danger is much less than a lot of toxics.
- > =Chemical state is irrelevant to this scenario as long as a microgram is
- > =ingested or inhaled. This is because it is estimated to take less than
- > =a nanogram of Pu to kill.
- >
- > And a single cosmic ray can also kill you, if it happens to do just the right
- > damage. So what's the point?
-
- That is not where this argument comes from. This is from recommended exposure
- levels by the AEC. So I'm not making some sort of magic bullet claim like
- your specious cosmic ray. Basically, a nanogram of Pu still contains billions
- of atoms, and enough alpha decays among them over a short period in you bones
- to guarantee luekemia. Please stay on the subject.
-
- > And what's the probability that a microgram of Pu will kill? A reasonable
- > comparison would be between the LD50s of the two compounds.
-
- Agreed, but I do not have acces to these numbers, I only have recommended
- exposure levels which are over 6 orders of magnitude different between CN
- and Pu.
-
- > => What about Bernard Cohen's willingness to eat and breathe plutonium
- > => oxide? To be elected President of the Health Physics Society, he
- > => certainly must be regarded by health physicists as an expert.
- > =
- > =And then he'd be a highly regarded health physicist with terminal
- > =leukemia.
- >
- > With what probability?
-
- Given the AEC's caution wrt. Pu, I'd guess close to 100% (Cohen did say
- he'd swallow a gram, for cryin' out loud. That's 9 orders of magnitude
- too much.) But it's only a guess.
-
-
- --
- Richard Stead
- Center for Seismic Studies
- Arlington, VA
- stead@seismo.css.gov
-