[ RadSafe ] "Toxic strontium" --- let's all panic (again).

Edmond Baratta edmond0033 at comcast.net
Fri Jun 17 00:55:36 CDT 2011

It (Strontium-90) was deposited during the Soviet and USA above ground 
testing many decades ago.

Ed Baratta

edomd0033 at comcast.net

-----Original Message----- 
From: Steven Dapra
Sent: Wednesday, June 15, 2011 5:45 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] "Toxic strontium" --- let's all panic (again).

June 15

         Point well made, and well taken.

         How likely is it that anyone will drink 10 Sv worth of
ground water?  How did this Sr-90 get into the ground water so
quickly?  Is it from the reactor, or is it from bomb testing
fallout?  Had any of this water undergone routine testing before the
tsunami hit?  What is the rad history of the aquifers?

Steven Dapra

At 04:53 AM 6/15/2011, you wrote:
>At 06:11 PM 6/14/2011, Steven Dapra wrote:
>>More "news" from ABC.
>>"Highly toxic radioactive strontium has been found in groundwater near the 
>>crippled Fukushima nuclear plant."
>It is true that high concentrations of Sr-90 in bone can cause bone sarcoma 
>and leukemia, but the skeletal doses must exceed 10 Sv. This is shown in 
>Figure 16 in my 2010 paper in the Health Physics Journal: OG Raabe, 
>Concerning the Health Effects of Internally Deposited Radionuclides, Health 
>Phys . 98: 515-536; 2010.
>If you want a copy of this paper, send me an e-mail request.
>Prof. Otto G. Raabe, Ph.D., CHP
>Center for Health & the Environment
>University of California
>One Shields Avenue
>Davis, CA 95616
>E-Mail: ograabe at ucdavis.edu
>Phone: (530) 752-7754   FAX: (530) 758-6140

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