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Re: Radiation level at Tsuruga plant 11,500 times legal safety limit
- To: radsafe <radsafe@romulus.ehs.uiuc.edu>
- Subject: Re: Radiation level at Tsuruga plant 11,500 times legal safety limit
- From: "John R. Laferriere 671-8316" <John.R.Laferriere@dupontpharma.com>
- Date: Fri, 16 Jul 1999 14:42:09 -0400 (EDT)
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"Based on the statement below... you will find the answer...
> Genden initially said the level of contamination was at least 1,000
> becquerels, 250 times the limit. The firm corrected the figure to
> 46,000 becquerels for Monday. The disparity was due to a lack of
> accurate data, Genden said."
The key information was contained in the email forwarded to Sandy by Ross
Pastel:
"The firm set the limit at four becquerels per square centimeter based
on the Nuclear Reactors Control Law."
It sounds to me like a surface contamination limit.
Converting into units I'm more familiar with, that comes out to 24,000 dpm
per 100 sq. cm., which is reasonable for a containment/restricted area.
The 46,000 Bq value would be about 2.8E8 dpm/100 sq. cm., which is a bit
on the high side, to say the least.
John R. Laferriere, CHP
DuPont Pharmaceuticals Co.
Medical Imaging Division
john.r.laferriere@dupontpharma.com
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