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- From: steinly@topaz.ucsc.edu (Steinn Sigurdsson)
- Newsgroups: talk.environment
- Subject: Re: Plutinium poisoning: Was Re: Greenpeace: they're not just for...
- Date: 23 Dec 92 10:55:38
- Organization: Lick Observatory/UCO
- Lines: 33
- Message-ID: <STEINLY.92Dec23105538@topaz.ucsc.edu>
- References: <1h8vvjINNdqb@usenet.INS.CWRU.Edu>
- NNTP-Posting-Host: topaz.ucsc.edu
- In-reply-to: co940@cleveland.Freenet.Edu's message of 23 Dec 1992 06:12:03 GMT
-
- In article <1h8vvjINNdqb@usenet.INS.CWRU.Edu> co940@cleveland.Freenet.Edu (Nicholas E. Damato) writes:
-
-
- According to information i've received from a sympathetic source,
- the maximum tolerated quarterly dose of inhaled Pu vs Po
- is smaller on a microcurie basis:
-
- From the 1991-92 edition of the CRC Hanbook:
- Max tolerated quarterly doses of inhaled atomic:
-
- Po-210 = 1.3 E-01 Microcuries
- Pu-239 = 2.4 E-02 Microcuries
-
- However, Po is approx. 64 times as radioactive as Pu.
-
- ? Pu 239 has half-life about 75000 times longer than Po 210
- which is a U 238 daughter. Both decay mainly by \alpha
- emission and I think both have energies of about an MeV,
- so the activity should scale like the decay time...
-
- I'd like to offer the following Hypothesis:
- Po is a transition metal in the same group as O, S, Se
- Is it possible that Po duplicates one or more of these
- substances as utilized by the body (e.g. Selenium) and hence
- may be more toxic because of the larger # of available
- pathways?
-
- * Steinn Sigurdsson Lick Observatory *
- * steinly@lick.ucsc.edu "standard disclaimer" *
- * But, oh, love is strange *
- * and you have to learn to take the crunchy with the smooth, *
- * I suppose - B.B. 1983 *
-
-