[ RadSafe ] Concerning Rizzini's claim of one ug U-238

[John R Johnson]

Cary et al

Unfortunately, we will all die sometime from many different cause.

John


On Mon, Oct 28, 2013 at 8:19 AM, Cary Renquist <cary.renquist at ezag.com>wrote:

> Doesn't that mean that he is correct?  100% of people with more than 1 ug
> U238 will die.
>
> ---
> Cary Renquist
>
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu [mailto:
> radsafe-bounces at health.phys.iit.edu] On Behalf Of Cowie, Michael I
> Sent: Sunday, 27 October 2013 11:30 PM
> To: The International Radiation Protection (Health Physics) Mailing List;
> Mattias.Lantz at physics.uu.se; The International Radiation
> Protection(Health Physics) Mailing List
> Subject: Re: [ RadSafe ] Concerning Rizzini's claim of one ug U-238
>
> From the IAEA document Depleted uranium: sources, exposure and health
> effects, Executive Summary it states:
>
> On average, approximately 90 μg (micrograms) of uranium exist in the human
> body from normal intakes of water, food and air; approximately 66% is found
> in the skeleton, 16% in the liver, 8% in the
> kidneys and 10% in other tissues.
>
> So with 99.27% of that being U-238................
>
>
> Mike
>
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu [mailto:
> radsafe-bounces at health.phys.iit.edu] On Behalf Of Otto G. Raabe
> Sent: Monday, October 28, 2013 10:14 AM
> To: Mattias.Lantz at physics.uu.se; The International Radiation Protection
> (Health Physics) Mailing List
> Subject: Re: [ RadSafe ] Concerning Rizzini's claim of one ug U-238
>
> Rizzini has been quoted as saying that one microgram of U-238 can kill a
> person. An article from March 31, 2011, Rizzini once again claims that 1
> microgram of uranium is enough to kill a person:
>
> PLEASE CHECK MY MATH: According to ICRP-2 (page 81) a human can have a
> body burden of U-238 of 0.5 microcuries without lifetime risk.
> That is 0.5 microcuries times 3.7 x 109 Bq/uCi = 1.9 x 109 Bq. One
> microgram of U-238 equals 0.012 Bq.
>
> Hence, according to ICRP-2 a human could have an internal burden of about
> ten grams without significant radiation risk.
>
> Am I missing something here? Please check my math.
>
> Otto
>
> **********************************************
> Prof. Otto G. Raabe, Ph.D., CHP
> Center for Health & the Environment
> University of California
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