[ RadSafe ] Collective Dose from Hiroshima and Nagasaki

[Sander Perle]

>From online summary of UNSWEAR:

I don¹t have a copy of the Report to assess myself:
On April 2, UNSCEAR published its long-awaited Report
<http://www.unscear.org/docs/reports/2013/13-85418_Report_2013_Annex_A.pdf>
on Fukushima. Of prime importance are its estimates  of collective doses to
the Japanese population.

Page 60 of Annex A of the UNSCEAR report contains the following table 8 on
estimated collective effective doses and collective absorbed doses to the
thyroid for the population of Japan (approximately 128 million in 2010).

Exposure duration Over first year Over ten years Up to age 80 years
Collective effective dose 18,000 man-Sv 36,000 man-Sv 48,000 man-Sv
Collective absorbed dose to thyroid 82,000 man-Gy 100,000 man-Gy 112,000
man-Gy

Regards,

Sandy
Retired, Consultant

From:  <radsafe-bounces at health.phys.iit.edu> on behalf of
<jjshonka at shonka.com>
Reply-To:  "The International Radiation Protection (Health Physics) Mailing
List" <radsafe at health.phys.iit.edu>
Date:  Saturday, April 16, 2016 at 11:39 AM
To:  "The International Radiation Protection (Health Physics) Mailing List"
<radsafe at health.phys.iit.edu>
Subject:  [ RadSafe ] Collective Dose from Hiroshima and Nagasaki

> Does anyone know the collective dose from Hiroshima and Nagasaki?  I
> understand that there were 250,000 survivors (of the 500,000 inhabitants in
> both cities) who received from about 100 mSv to 1,000 mSv.  I believe that
> beyond that range, death from blast, fires, and other injuries along with
> radiation sickness resulted in few survivors.  If I take 300 mSv X 250,000 I
> get a collective dose of only 75,000 person-Sv, maybe twice Chernobyl.  That
> seems low to me.
> 
> 
> Joe Shonka
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