Re: 5 mSv vs. 1 mSv

["Jerry Cohen" <jjcohen@prodigy.net>]

    As I recall, the "logic" at the time was that the public dose limit of
500mrem/y would apply to the sum of all sources of exposure. By assuming 3
sources, each is allocated 500/3, or 166.666667 (1.67mrem/y), or
1.67 mSv/y. As is too often the case, precision was apparently intended to
compensate for lack of understanding. I think it was Bismarck who said,"it's
a   good thing that the public doesn't know how either laws or sausages are
made".
    Incidentally,  France had the good judgement to reject ICRP-60 guidance,
and retains  the 5.0 mSv/y limit.
                                            jjcohen@prodigy.net

-----Original Message-----
From: Sandy Perle <sandyfl@earthlink.net>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Date: Friday, June 16, 2000 6:28 PM
Subject: Re: 5 mSv vs. 1 mSv


>> a limit of 1.67 mSv/y.
>
>Franz,
>
>What is the basis for a limit of 1.67 mSv/yr? Why not 1.65 or 1.7
>mSv/yr. Seems like an odd number to end up with.
>
>Thanks for any info.
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