[ RadSafe ] Plutonium from Ibaraki not in lung
Brad Keck
bradkeck at mac.com
Sat Jun 10 13:51:10 CDT 2017
Thanks Mark for posting - this is a very interesting turn of events in Japan.
It is always more difficult to get your facts right than to find a microphone. At least it seems they - eventually - actually did a proper survey and decontamination of the impacted individuals. Perhaps a technical report will be produced that summarizes the incident and what they were seeing and thinking at the time. I wonder if the press will find the retraction of the previous story as being “worthy” of their pages.
A wise old carpenter, who could have been a good HP (but a dull newspaper reporter), once impressed upon me the importance to “Measure twice; report once!”
Brad
> On Jun 10, 2017, at 10:30 AM, Mark Miller <marklmiller20 at gmail.com> wrote:
>
> The large internal Plutonium contamination incident widely reported earlier
> this week, may actually be entirely incorrect. The National Institute of
> Radiological Sciences (NIRS) in Chiba has examined all of the men. NIRS
> says they can find no internal contamination of the lungs in any of them!
>
> That's right! Nothing detectible!
>
> The alleged internal radioactivity activity(s) reported earlier this week
> disappeared after the NIRS administered "proper decontamination". The JAEA
> said it believes the initial readings resulted from transuranic
> contamination detected on the men's skin prior to undergoing
> decontamination.
>
> http://www.asahi.com/ajw/articles/AJ201706100022.html
>
> Numerous possibilities immediately come to mind. First, JAEA might possibly
> have the most incompetent HP staff imaginable. Second, Japan's decidedly
> antinuclear Press may well have made another mountain out of a mole-hill,
> a-la the "soaring radiation levels" in F. Daiichi unit #2 broadcast earlier
> this year. It's been more than six years since the nuke accident, and they
> still have no clue. Third, even if the dude actually had 22,000 Bq of
> Plutonium in his lungs, it appears that the reported 1.2 Sievert exposure
> in the first year and 12 Sieverts lifetime are gross exaggerations. Fourth,
> Nuclear Regulation Authority commissioners criticizing the workers for
> "complacency", will have considerable egg on their faces. I could go
> on-and-on!
>
> What a ridiculous mess!
>
> On Thu, Jun 8, 2017 at 11:00 AM, <radsafe-request at health.phys.iit.edu>
> wrote:
>
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>> Thanks!_______________________________________________
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>>
>> Today's Topics:
>>
>> 1. [Radsafe] News: One worker at Ibaraki facility found with up
>> to 22, 000 becquerels of plutonium in lungs (Nick Tsurikov)
>> 2. Re: ] [Radsafe] News: One worker at Ibaraki facility found
>> with up to 22, 000 becquerels of plutonium in lungs (Roger Helbig)
>> 3. Re: ] [Radsafe] News: One worker at Ibaraki facility found
>> with up to 22, 000 becquerels of plutonium in lungs (Roger Helbig)
>> 4. Worker at Ibaraki facility found with up to 22 kBq of Pu in
>> lungs (Chris Alston)
>> 5. Re: ] [Radsafe] News: One worker at Ibaraki facility found
>> with up to 22, 000 becquerels of plutonium in lungs (Jaro Franta)
>> 6. Re: [Non-DoD Source] Re: ] [Radsafe] Caution-news: One worker
>> at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED)
>> (Falo, Gerald A CIV USARMY MEDCOM APHC (US))
>> 7. Re: [Non-DoD Source] Re: ] [Radsafe] Caution-news: One worker
>> at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED) (Kulp, Jeffrey (DOH))
>> 8. Re: [Non-DoD Source] Re: ] [Radsafe] Caution-news: One worker
>> at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED) (Mattias Lantz)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Thu, 8 Jun 2017 07:30:45 +0800
>> From: Nick Tsurikov <nick.tsurikov at gmail.com>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: [ RadSafe ] [Radsafe] News: One worker at Ibaraki facility
>> found with up to 22, 000 becquerels of plutonium in lungs
>> Message-ID:
>> <CAPi+aJApBMX+vFLPjVOhOAGx-qPuYwLsuHNDiPUjee6cmdMERA@
>> mail.gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>>
>> Dear all,
>> The full article in Japan Today:
>> https://japantoday.com/category/national/5-workers-
>> suffer-radiation-exposure-one-with-up-to-22-000-becquerels-
>> of-plutonium-in-his-lungs
>> Kind regards
>> Nick
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 7 Jun 2017 16:38:44 -0700
>> From: Roger Helbig <rwhelbig at gmail.com>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] ] [Radsafe] News: One worker at Ibaraki
>> facility found with up to 22, 000 becquerels of plutonium in lungs
>> Message-ID:
>> <CALZ0NqXhodo7PHvDjQLne1g0FyTbJUvrg_MnkeDq+EuKnNWS+w at mail.
>> gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>>
>> One of the comments says this - Are there indeed such documented cases?
>>
>> "There are documented cases of workers at nuclear weapons facilities
>> dying within days of experiencing brief accidental exposure to
>> plutonium, according to the Hazardous Substances Data Bank."
>>
>> Roger Helbig
>>
>>
>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>> Dear all,
>>> The full article in Japan Today:
>>> https://japantoday.com/category/national/5-workers-
>> suffer-radiation-exposure-one-with-up-to-22-000-becquerels-
>> of-plutonium-in-his-lungs
>>> Kind regards
>>> Nick
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 7 Jun 2017 16:42:19 -0700
>> From: Roger Helbig <rwhelbig at gmail.com>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] ] [Radsafe] News: One worker at Ibaraki
>> facility found with up to 22, 000 becquerels of plutonium in lungs
>> Message-ID:
>> <CALZ0NqVxBQ3s5fuCs_xGm3b7kNufwPysqVhm5uLk8Afi42Fg
>> Mw at mail.gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>>
>> Sounds like the comment is way over the top from this -
>>
>> https://www.ncbi.nlm.nih.gov/pubmed/9314220
>>
>> Fifty years of plutonium exposure to the Manhattan Project plutonium
>> workers: an update.
>>
>> Voelz GL1, Lawrence JN, Johnson ER.
>>
>> Author information
>>
>> Abstract
>>
>> Twenty-six white male workers who did the original plutonium research
>> and development work at Los Alamos have been examined periodically
>> over the past 50 y to identify possible health effects from internal
>> plutonium depositions. Their effective doses range from 0.1 to 7.2 Sv
>> with a median value of 1.25 Sv. As of the end of 1994, 7 individuals
>> have died compared with an expected 16 deaths based on mortality rates
>> of U.S. white males in the general population. The standardized
>> mortality ratio (SMR) is 0.43. When compared with 876 unexposed Los
>> Alamos workers of the same period, the plutonium worker's mortality
>> rate was also not elevated (SMR = 0.77). The 19 living persons have
>> diseases and physical changes characteristic of a male population with
>> a median age of 72 y (range = 69 to 86 y). Eight of the twenty-six
>> workers have been diagnosed as having one or more cancers, which is
>> within the expected range. The underlying cause of death in three of
>> the seven deceased persons was from cancer, namely cancer of prostate,
>> lung, and bone. Mortality from all cancers was not statistically
>> elevated. The effective doses from plutonium to these individuals are
>> compared with current radiation protection guidelines.
>>
>> On Wed, Jun 7, 2017 at 4:38 PM, Roger Helbig <rwhelbig at gmail.com> wrote:
>>> One of the comments says this - Are there indeed such documented cases?
>>>
>>> "There are documented cases of workers at nuclear weapons facilities
>>> dying within days of experiencing brief accidental exposure to
>>> plutonium, according to the Hazardous Substances Data Bank."
>>>
>>> Roger Helbig
>>>
>>>
>>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>>> Dear all,
>>>> The full article in Japan Today:
>>>> https://japantoday.com/category/national/5-workers-
>> suffer-radiation-exposure-one-with-up-to-22-000-becquerels-
>> of-plutonium-in-his-lungs
>>>> Kind regards
>>>> Nick
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 7 Jun 2017 22:27:41 -0400
>> From: Chris Alston <achris1999 at gmail.com>
>> To: Radsafe List <radsafe at health.phys.iit.edu>
>> Subject: [ RadSafe ] Worker at Ibaraki facility found with up to 22
>> kBq of Pu in lungs
>> Message-ID:
>> <CAADHP=MYzXTQBfk0DE-O+PG_=Cbfu9yTtq6kiF8pG0fcHh+3Ew at mail.
>> gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>>
>> Roger
>>
>> Thanks for this interesting posting. A problem with using effective dose
>> (Sv) in epidemiology is that, because it's a risk-based unit, not a unit of
>> physical measurement (Gy), one essentially presupposes an effect. Now, it
>> may well be that the authors of the study include estimates of the
>> radiation doses to the various organs in their, no doubt, lengthy
>> discussion of their methodology, that is, how they derived the estimated
>> effective doses. But personally I'd find it more informative if they gave
>> us intercomparisons of, say, the radiation doses to the lungs of all of the
>> exposed subjects with those of the "controls" (including the cGy delivered
>> by cigarette smoke).
>>
>> Cheers
>> ca
>> ---------- Forwarded message ----------
>> From: Roger Helbig <rwhelbig at gmail.com>
>> To: "The International Radiation Protection (Health Physics) Mailing List"
>> <
>> radsafe at health.phys.iit.edu>
>> Sounds like the comment is way over the top from this -
>> https://www.ncbi.nlm.nih.gov/pubmed/9314220
>> Fifty years of plutonium exposure to the Manhattan Project plutonium
>> workers: an update.
>> Voelz GL1, Lawrence JN, Johnson ER.
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Thu, 8 Jun 2017 07:36:47 -0400
>> From: "Jaro Franta" <jaro_10kbq at videotron.ca>
>> To: "'The International Radiation Protection \(Health Physics\)
>> Mailing List'" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] ] [Radsafe] News: One worker at Ibaraki
>> facility found with up to 22, 000 becquerels of plutonium
>> in lungs
>> Message-ID: <00a401d2e04b$8441a7b0$8cc4f710$@ca>
>> Content-Type: text/plain; charset="US-ASCII"
>>
>> The article states that "The agency estimates that the amount of radiation
>> exposure of the man with the highest level translates to up to 12 sieverts
>> over 50 years."
>>
>> It doesn't say what that 12 Sv applies to - effective body dose, or dose to
>> a particular organ.
>>
>> So I looked at some Rad Toolbox calcs for inhalation of 22kBq of Pu239
>> (slow
>> systemic transfer - 'S' or 'Y' case)
>>
>> https://www.dropbox.com/s/u2uxiwr778347tv/22kBq_Pu239_dose_RadToolbox.JPG
>>
>> Interesting to compare to Radium dial painters data - where no malignancies
>> were seen below 3700 kBq (0.1mCi) of INGESTED activity.
>> Ingestion is of course a very different pathway, but Rad Toolbox calculates
>> that, while the bone surface dose is much higher for the Ra226 ingestion
>> case, the effective body dose is similar to inhalation of 22kBq of Pu239.
>>
>> https://www.dropbox.com/s/xsav1daxx34zdbm/3700kBq_Ra226_
>> ingestion_dose_RadTo
>> olbox.JPG
>>
>> https://www.dropbox.com/s/xsk8c7agv5ulney/Radium_dial_painters_graphic.jpg
>>
>>
>> Jaro
>> ^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>>
>>
>>
>>
>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>> Dear all,
>>> The full article in Japan Today:
>>>
>> https://japantoday.com/category/national/5-workers-
>> suffer-radiation-exposure
>> -one-with-up-to-22-000-becquerels-of-plutonium-in-his-lungs
>>> Kind regards
>>> Nick
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood the
>> RadSafe rules. These can be found at:
>> http://health.phys.iit.edu/radsaferules.html
>>
>> For information on how to subscribe or unsubscribe and other settings
>> visit:
>> http://health.phys.iit.edu
>>
>>
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Thu, 8 Jun 2017 14:11:48 +0000
>> From: "Falo, Gerald A CIV USARMY MEDCOM APHC (US)"
>> <gerald.a.falo.civ at mail.mil>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe]
>> Caution-news: One worker at Ibaraki facility found with up to
>> 22, 000
>> becquerels of plutonium in lungs (UNCLASSIFIED)
>> Message-ID:
>> <B433EF8B6E41DC40A42437C6C22E3A14A133D0BE at UMECHPA7F.easf.
>> csd.disa.mil>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Classification: UNCLASSIFIED
>> Caveats: NONE
>>
>> All,
>>
>> I used the online version of the MONDAL3 (http://www.nirs.qst.go.jp/db/
>> anzendb/RPD/mondal3.php).
>>
>> For an inhalation of Type M (unspecified compounds), one-day after intake,
>> and retention in the lung, I got the following values.
>>
>> Retention/Excretion Committed effective dose
>> per measured activity (Sv/Bq)
>> 0.1micron 3.01E-01 3.654E-4
>> 0.3micron 1.53E-01 3.856E-4
>> 1 micron 1.09E-01 4.312E-4
>> 3 micron 8.17E-02 5.018E-4
>> 5 micron 5.76E-02 5.556E-4
>> 10micron 2.64E-02 7.576E-4
>>
>> For 5 um and a lung content of 22,000 Bq, the CED is 12.2 Sv.
>>
>> ************
>> Note about MONDAL3.
>>
>> "MONDAL3" is a PC based software that will help users to estimate intake
>> of radionuclides inhaled or ingested by workers or by members of the public
>> and resulting committed effective dose based on measurement results of
>> individual monitoring such as in vivo counting or bioassay measurement.
>> "MONDAL3" is a free software. If you would like to receive it, please send
>> an e-mail to mondal at qst.go.jp"
>> ************
>>
>> Jerry
>>
>> __________________________
>> Gerald A. Falo, Ph.D., CHP
>> U.S. Army Public Health Center - Health Physics Division
>> gerald.a.falo.civ at mail.mil
>> gerald.a.falo.civ at mail.smil.mil
>> Comm: 410-436-4852
>> DSN: 584-4852
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces@
>> health.phys.iit.edu] On Behalf Of Jaro Franta
>> Sent: Thursday, June 08, 2017 7:37 AM
>> To: 'The International Radiation Protection (Health Physics) Mailing List'
>> Subject: [Non-DoD Source] Re: [ RadSafe ] ] [Radsafe] Caution-news: One
>> worker at Ibaraki facility found with up to 22, 000 becquerels of plutonium
>> in lungs
>>
>> All active links contained in this email were disabled. Please verify the
>> identity of the sender, and confirm the authenticity of all links contained
>> within the message prior to copying and pasting the address to a Web
>> browser.
>>
>>
>>
>>
>> ----
>>
>> The article states that "The agency estimates that the amount of radiation
>> exposure of the man with the highest level translates to up to 12 sieverts
>> over 50 years."
>>
>> It doesn't say what that 12 Sv applies to - effective body dose, or dose
>> to a particular organ.
>>
>> So I looked at some Rad Toolbox calcs for inhalation of 22kBq of Pu239
>> (slow systemic transfer - 'S' or 'Y' case)
>>
>> Caution-https://www.dropbox.com/s/u2uxiwr778347tv/22kBq_
>> Pu239_dose_RadToolbox.JPG
>>
>> Interesting to compare to Radium dial painters data - where no
>> malignancies were seen below 3700 kBq (0.1mCi) of INGESTED activity.
>> Ingestion is of course a very different pathway, but Rad Toolbox
>> calculates that, while the bone surface dose is much higher for the Ra226
>> ingestion case, the effective body dose is similar to inhalation of 22kBq
>> of Pu239.
>>
>> Caution-https://www.dropbox.com/s/xsav1daxx34zdbm/3700kBq_
>> Ra226_ingestion_dose_RadTo
>> olbox.JPG
>>
>> Caution-https://www.dropbox.com/s/xsk8c7agv5ulney/Radium_
>> dial_painters_graphic.jpg
>>
>>
>> Jaro
>> ^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>>
>>
>>
>>
>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>> Dear all,
>>> The full article in Japan Today:
>>>
>> Caution-https://japantoday.com/category/national/5-
>> workers-suffer-radiation-exposure
>> -one-with-up-to-22-000-becquerels-of-plutonium-in-his-lungs
>>> Kind regards
>>> Nick
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at:
>> Caution-http://health.phys.iit.edu/radsaferules.html
>>
>> For information on how to subscribe or unsubscribe and other settings
>> visit:
>> Caution-http://health.phys.iit.edu
>>
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at: Caution-http://health.phys.
>> iit.edu/radsaferules.html
>>
>> For information on how to subscribe or unsubscribe and other settings
>> visit: Caution-http://health.phys.iit.edu
>>
>> Classification: UNCLASSIFIED
>> Caveats: NONE
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 7
>> Date: Thu, 8 Jun 2017 15:17:26 +0000
>> From: "Kulp, Jeffrey (DOH)" <Jeffrey.Kulp at DOH.WA.GOV>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe]
>> Caution-news: One worker at Ibaraki facility found with up to
>> 22, 000
>> becquerels of plutonium in lungs (UNCLASSIFIED)
>> Message-ID:
>> <52CB4CDBBD9E7C45856F7E614222EA121E49A050 at WAXMXOLYMB014.WAX.
>> wa.lcl>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Hello Dr. Falo,
>>
>> Over what period of time is the dose of 12.2 Sv delivered to the lungs?
>>
>> Thanks,
>>
>>
>> Jeffrey Kulp, RRPT
>> Radiation Health Physicist
>> Washington State Department of Health - ORP
>> 16201 E. Indiana Ave. Suite 1500
>> Spokane Valley, WA 99216
>> (509) 329-2138 (Office)
>> (509) 329-2154 (Fax)
>> "Public Health - Always Working for a Safer and Healthier Washington"
>>
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces@
>> health.phys.iit.edu] On Behalf Of Falo, Gerald A CIV USARMY MEDCOM APHC
>> (US)
>> Sent: Thursday, June 8, 2017 7:12 AM
>> To: The International Radiation Protection (Health Physics) Mailing List <
>> radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe] Caution-news:
>> One worker at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED)
>>
>> Classification: UNCLASSIFIED
>> Caveats: NONE
>>
>> All,
>>
>> I used the online version of the MONDAL3 (http://www.nirs.qst.go.jp/db/
>> anzendb/RPD/mondal3.php).
>>
>> For an inhalation of Type M (unspecified compounds), one-day after intake,
>> and retention in the lung, I got the following values.
>>
>> Retention/Excretion Committed effective dose
>> per measured activity (Sv/Bq)
>> 0.1micron 3.01E-01 3.654E-4
>> 0.3micron 1.53E-01 3.856E-4
>> 1 micron 1.09E-01 4.312E-4
>> 3 micron 8.17E-02 5.018E-4
>> 5 micron 5.76E-02 5.556E-4
>> 10micron 2.64E-02 7.576E-4
>>
>> For 5 um and a lung content of 22,000 Bq, the CED is 12.2 Sv.
>>
>> ************
>> Note about MONDAL3.
>>
>> "MONDAL3" is a PC based software that will help users to estimate intake
>> of radionuclides inhaled or ingested by workers or by members of the public
>> and resulting committed effective dose based on measurement results of
>> individual monitoring such as in vivo counting or bioassay measurement.
>> "MONDAL3" is a free software. If you would like to receive it, please send
>> an e-mail to mondal at qst.go.jp"
>> ************
>>
>> Jerry
>>
>> __________________________
>> Gerald A. Falo, Ph.D., CHP
>> U.S. Army Public Health Center - Health Physics Division
>> gerald.a.falo.civ at mail.mil
>> gerald.a.falo.civ at mail.smil.mil
>> Comm: 410-436-4852
>> DSN: 584-4852
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces@
>> health.phys.iit.edu] On Behalf Of Jaro Franta
>> Sent: Thursday, June 08, 2017 7:37 AM
>> To: 'The International Radiation Protection (Health Physics) Mailing List'
>> Subject: [Non-DoD Source] Re: [ RadSafe ] ] [Radsafe] Caution-news: One
>> worker at Ibaraki facility found with up to 22, 000 becquerels of plutonium
>> in lungs
>>
>> All active links contained in this email were disabled. Please verify the
>> identity of the sender, and confirm the authenticity of all links contained
>> within the message prior to copying and pasting the address to a Web
>> browser.
>>
>>
>>
>>
>> ----
>>
>> The article states that "The agency estimates that the amount of radiation
>> exposure of the man with the highest level translates to up to 12 sieverts
>> over 50 years."
>>
>> It doesn't say what that 12 Sv applies to - effective body dose, or dose
>> to a particular organ.
>>
>> So I looked at some Rad Toolbox calcs for inhalation of 22kBq of Pu239
>> (slow systemic transfer - 'S' or 'Y' case)
>>
>> Caution-https://www.dropbox.com/s/u2uxiwr778347tv/22kBq_
>> Pu239_dose_RadToolbox.JPG
>>
>> Interesting to compare to Radium dial painters data - where no
>> malignancies were seen below 3700 kBq (0.1mCi) of INGESTED activity.
>> Ingestion is of course a very different pathway, but Rad Toolbox
>> calculates that, while the bone surface dose is much higher for the Ra226
>> ingestion case, the effective body dose is similar to inhalation of 22kBq
>> of Pu239.
>>
>> Caution-https://www.dropbox.com/s/xsav1daxx34zdbm/3700kBq_
>> Ra226_ingestion_dose_RadTo
>> olbox.JPG
>>
>> Caution-https://www.dropbox.com/s/xsk8c7agv5ulney/Radium_
>> dial_painters_graphic.jpg
>>
>>
>> Jaro
>> ^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>>
>>
>>
>>
>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>> Dear all,
>>> The full article in Japan Today:
>>>
>> Caution-https://japantoday.com/category/national/5-
>> workers-suffer-radiation-exposure
>> -one-with-up-to-22-000-becquerels-of-plutonium-in-his-lungs
>>> Kind regards
>>> Nick
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at:
>> Caution-http://health.phys.iit.edu/radsaferules.html
>>
>> For information on how to subscribe or unsubscribe and other settings
>> visit:
>> Caution-http://health.phys.iit.edu
>>
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at: Caution-http://health.phys.
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>>
>> ------------------------------
>>
>> Message: 8
>> Date: Thu, 8 Jun 2017 16:35:44 +0000
>> From: Mattias Lantz <mattias.lantz at physics.uu.se>
>> To: "The International Radiation Protection (Health Physics) Mailing
>> List" <radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe]
>> Caution-news: One worker at Ibaraki facility found with up to
>> 22, 000
>> becquerels of plutonium in lungs (UNCLASSIFIED)
>> Message-ID: <ba28a4393bd3474e8a62ccdc920094a2 at physics.uu.se>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Dear all, and Dr. Falo,
>>
>> I am also interested in understanding how the CED should be interpreted in
>> the graph. If I understand correctly you read the values at 0.1 days after
>> inhalation, i.e. shortly after the time of the inhalation. For each Bq of
>> Pu-239 a given dose is given.
>> If instead an estimate of the present activity is made 10 days after the
>> event then the value at 10 days is used, taking into account the dose up to
>> that time and the fact that the activity at the time of the intake was
>> higher than now.
>> Is this a correct interpretation?
>>
>> Best wishes,
>> Mattias Lantz
>>
>>
>> ________________________________
>> From: radsafe-bounces at health.phys.iit.edu <radsafe-bounces at health.phys.
>> iit.edu> on behalf of Kulp, Jeffrey (DOH) <Jeffrey.Kulp at DOH.WA.GOV>
>> Sent: 08 June 2017 17:17:26
>> To: The International Radiation Protection (Health Physics) Mailing List
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe] Caution-news:
>> One worker at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED)
>>
>> Hello Dr. Falo,
>>
>> Over what period of time is the dose of 12.2 Sv delivered to the lungs?
>>
>> Thanks,
>>
>>
>> Jeffrey Kulp, RRPT
>> Radiation Health Physicist
>> Washington State Department of Health - ORP
>> 16201 E. Indiana Ave. Suite 1500
>> Spokane Valley, WA 99216
>> (509) 329-2138 (Office)
>> (509) 329-2154 (Fax)
>> "Public Health - Always Working for a Safer and Healthier Washington"
>>
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces@
>> health.phys.iit.edu] On Behalf Of Falo, Gerald A CIV USARMY MEDCOM APHC
>> (US)
>> Sent: Thursday, June 8, 2017 7:12 AM
>> To: The International Radiation Protection (Health Physics) Mailing List <
>> radsafe at health.phys.iit.edu>
>> Subject: Re: [ RadSafe ] [Non-DoD Source] Re: ] [Radsafe] Caution-news:
>> One worker at Ibaraki facility found with up to 22, 000 becquerels of
>> plutonium in lungs (UNCLASSIFIED)
>>
>> Classification: UNCLASSIFIED
>> Caveats: NONE
>>
>> All,
>>
>> I used the online version of the MONDAL3 (http://www.nirs.qst.go.jp/db/
>> anzendb/RPD/mondal3.php).
>>
>> For an inhalation of Type M (unspecified compounds), one-day after intake,
>> and retention in the lung, I got the following values.
>>
>> Retention/Excretion Committed effective dose
>> per measured activity (Sv/Bq)
>> 0.1micron 3.01E-01 3.654E-4
>> 0.3micron 1.53E-01 3.856E-4
>> 1 micron 1.09E-01 4.312E-4
>> 3 micron 8.17E-02 5.018E-4
>> 5 micron 5.76E-02 5.556E-4
>> 10micron 2.64E-02 7.576E-4
>>
>> For 5 um and a lung content of 22,000 Bq, the CED is 12.2 Sv.
>>
>> ************
>> Note about MONDAL3.
>>
>> "MONDAL3" is a PC based software that will help users to estimate intake
>> of radionuclides inhaled or ingested by workers or by members of the public
>> and resulting committed effective dose based on measurement results of
>> individual monitoring such as in vivo counting or bioassay measurement.
>> "MONDAL3" is a free software. If you would like to receive it, please send
>> an e-mail to mondal at qst.go.jp"
>> ************
>>
>> Jerry
>>
>> __________________________
>> Gerald A. Falo, Ph.D., CHP
>> U.S. Army Public Health Center - Health Physics Division
>> gerald.a.falo.civ at mail.mil
>> gerald.a.falo.civ at mail.smil.mil
>> Comm: 410-436-4852
>> DSN: 584-4852
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces@
>> health.phys.iit.edu] On Behalf Of Jaro Franta
>> Sent: Thursday, June 08, 2017 7:37 AM
>> To: 'The International Radiation Protection (Health Physics) Mailing List'
>> Subject: [Non-DoD Source] Re: [ RadSafe ] ] [Radsafe] Caution-news: One
>> worker at Ibaraki facility found with up to 22, 000 becquerels of plutonium
>> in lungs
>>
>> All active links contained in this email were disabled. Please verify the
>> identity of the sender, and confirm the authenticity of all links contained
>> within the message prior to copying and pasting the address to a Web
>> browser.
>>
>>
>>
>>
>> ----
>>
>> The article states that "The agency estimates that the amount of radiation
>> exposure of the man with the highest level translates to up to 12 sieverts
>> over 50 years."
>>
>> It doesn't say what that 12 Sv applies to - effective body dose, or dose
>> to a particular organ.
>>
>> So I looked at some Rad Toolbox calcs for inhalation of 22kBq of Pu239
>> (slow systemic transfer - 'S' or 'Y' case)
>>
>> Caution-https://www.dropbox.com/s/u2uxiwr778347tv/22kBq_
>> Pu239_dose_RadToolbox.JPG
>>
>> Interesting to compare to Radium dial painters data - where no
>> malignancies were seen below 3700 kBq (0.1mCi) of INGESTED activity.
>> Ingestion is of course a very different pathway, but Rad Toolbox
>> calculates that, while the bone surface dose is much higher for the Ra226
>> ingestion case, the effective body dose is similar to inhalation of 22kBq
>> of Pu239.
>>
>> Caution-https://www.dropbox.com/s/xsav1daxx34zdbm/3700kBq_
>> Ra226_ingestion_dose_RadTo
>> olbox.JPG
>>
>> Caution-https://www.dropbox.com/s/xsk8c7agv5ulney/Radium_
>> dial_painters_graphic.jpg
>>
>>
>> Jaro
>> ^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>>
>>
>>
>>
>> On Wed, Jun 7, 2017 at 4:30 PM, Nick Tsurikov <nick.tsurikov at gmail.com>
>> wrote:
>>> Dear all,
>>> The full article in Japan Today:
>>>
>> Caution-https://japantoday.com/category/national/5-
>> workers-suffer-radiation-exposure
>> -one-with-up-to-22-000-becquerels-of-plutonium-in-his-lungs
>>> Kind regards
>>> Nick
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
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>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at:
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>> visit:
>> Caution-http://health.phys.iit.edu
>>
>> _______________________________________________
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>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at: Caution-http://health.phys.
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>> visit: Caution-http://health.phys.iit.edu
>>
>> Classification: UNCLASSIFIED
>> Caveats: NONE
>>
>>
>> _______________________________________________
>> You are currently subscribed to the RadSafe mailing list
>>
>> Before posting a message to RadSafe be sure to have read and understood
>> the RadSafe rules. These can be found at: http://health.phys.iit.edu/
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>>
>> ------------------------------
>>
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>>
>> End of RadSafe Digest, Vol 2281, Issue 1
>> ****************************************
>>
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