From Name
David Grammer

To all, I have attached an email from an International Group of radiation
scientist.
In the attached email in response to question # 4;
Caoimhmn P. Connell
>Forensic Industrial Hygienist
>Forensic Industrial Hygiene
States the following, "Remember, not one study to date, NOT ONE, has
demonstrated that radon as seen in homes has been able to demonstrate that
it increases the risk of
cancer one iota - and remember too, that the US EPA found that as radon
concentrations in a home go up, the cancer risk goes DOWN".
Maybe someone on this UIOWA email list would like to respond.
This is an interesting list serve I joined a year ago & have found it very
helpful.
Today's email speaks directly to radon so I thought it should be seen by the
radon list serve.
If you have received this in duplicate I am sorry.
David Grammer
-----Original Message-----
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Of radsafe-request@radlab.nl
Sent: None
To: radsafe@radlab.nl
Subject: radsafe Digest, Vol 195, Issue 4
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_______________________________________________
Today's Topics:
1. Half Century of Health Physics DVD Question (Wes Van Pelt)
2. Re: Half Century of Health Physics DVD Question (Peter Fear)
3. Pat Thurston KGO Radio With David Bear on Three Mile Island
(Roger Helbig)
4. Re: Anyone have a comment ? about radon risk and 226 Ra in
milk ?? (William Levy)
5. Biological dose measures promise new view of cardiac imaging
risk (Clayton J Bradt)
6. RE: Anyone have a comment ? about radon risk and226 Ra in
milk ?? (Cary Renquist)
7. RE: Anyone have a comment ? about radon risk and226 Ra inmilk
?? (Dan W McCarn)
8. Re: radsafe Digest, Vol 195, Issue 3 (al@solidsurfacealliance.org)
9. Re: Re: radsafe Digest, Vol 195, Issue 3 (Steven Dapra)
10. Re: Re: radsafe Digest, Vol 195, Issue 3 (Steven Dapra)
----------------------------------------------------------------------
Message: 1
Date: Wed, 29 Apr 2009 12:50:58 -0400
From: "Wes Van Pelt"
Subject: [ RadSafe ] Half Century of Health Physics DVD Question
To:
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
When trying to access my Health Physics Journal with QLU I get the following
error message:
No books are available. Possible explanations:
You have not signed up for any books.
Books you signed up for have expired or have not been paid for.
Your username/password are invalid.
There is no Internet connection.
Click the 'Find' button to try again, or go to the QLU website for more
information.
Best regards, Wes
Wesley R. Van Pelt, PhD, CIH, CHP
Wesley R. Van Pelt Associates, Inc.
------------------------------
Message: 2
Date: Wed, 29 Apr 2009 14:20:21 -0400
From: "Peter Fear"
Subject: Re: [ RadSafe ] Half Century of Health Physics DVD Question
To: ,
Message-ID:
Content-Type: text/plain; charset=US-ASCII
I had to reinstall but it worked fine for me after I cleaned the DVD.
Pete
Peter Fear
Health Physics Technologist
SUNY Upstate Medical University
Radiation Safety Office
636 UH
750 E. Adams St.
Syracuse, NY 13210
Phone: (315)464-6510
FAX: (315)464-5095
fearp@upstate.edu
>>> "Wes Van Pelt" 04/29/09 12:50 PM >>>
When trying to access my Health Physics Journal with QLU I get the
following
error message:
No books are available. Possible explanations:
You have not signed up for any books.
Books you signed up for have expired or have not been paid for.
Your username/password are invalid.
There is no Internet connection.
Click the 'Find' button to try again, or go to the QLU website for more
information.
Best regards, Wes
Wesley R. Van Pelt, PhD, CIH, CHP
Wesley R. Van Pelt Associates, Inc.
_______________________________________________
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:
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For information on how to subscribe or unsubscribe and other settings
visit: http://radlab.nl/radsafe/
------------------------------
Message: 3
Date: Wed, 29 Apr 2009 19:53:23 -0700
From: Roger Helbig
Subject: [ RadSafe ] Pat Thurston KGO Radio With David Bear on Three
Mile Island
To: Know_Nukes@yahoogroups.com
Cc: radsafe@radlab.nl
Message-ID:
Content-Type: text/plain; charset=ISO-8859-1
If anyone is interested in listening to the appearance of anti-nuclear
activist David Bear (formerly Bloombaum) on the KGO Radio talk show
hosted by Pat Thurston, particularly with the point of writing the
station and complaining about this full hour of falsely claimed "I've
been there done that" lies about Three Mile Island, please, write me
and I will send you the five MP3 audio files. Two of them are near
10MB; the other three are smaller.
Roger Helbig
To write the station, send an e-mail to the President of the
Corporation, Mickey Luckoff -
or to Gene Burns, for whom Pat Thurston was filling in
gburns@geneburns.com
David Bear (Bloombaum)
Grover Cleveland High School
Reseda, CA
Class of 1964
ISS - Investigation: Revelations about Three Mile Island disaster ...
... also hired to monitor radiation after the TMI disaster, David Bear
(formerly Bloombaum) - prepared a report analyzing the Kemeny
Commission findings. ...
southernstudies.org/2009/04/post-4.html -
Sue Sturgis: Fooling with Disaster?
Apr 3, 2009 ... David Ker Thomson Actions: Things to Do Instead of
Hailing the Chief ..... David Bear (formerly Bloombaum) - prepared a
report analyzing the ...
www.counterpunch.org/sturgis04032009.html -
Startling Revelations about Three Mile Island Disaster Raise ...
15 posts - 6 authors - Last post: Apr 9
... David Bear (formerly Bloombaum) - prepared a report analyzing the
... But the Thompsons and Bear point out that the commission's own ...
www.alternet.org/.../134977/startling_revelations_about_three_mile_island_di
saster_raise_doubts_over_nuke_safety/?...
Share | CommonDreams.org
... also hired to monitor radiation after the TMI disaster, David Bear
(formerly Bloombaum) - prepared a report analyzing the Kemeny
Commission findings. ...
www.commondreams.org/share/40377
Investigation: Revelations About Three Mile Island Disaster Raise ...
Apr 26, 2009 ... 2 hours 8 min ago; As usual David ..... David Bear
(formerly Bloombaum) - prepared a report analyzing the Kemeny
Commission findings. ...
www.afterdowningstreet.org/node/42042
HiddenMysteries - Fooling and Fueling with Disaster?
David H. Lewis Author Websites: ..... after the TMI disaster, David
Bear (formerly Bloombaum) - prepared a report analyzing the Kemeny
Commission findings. ...
hiddenmysteries.net/geeklog/article.php?story=20090405035318600 -
Environment + roger hollander
... also hired to monitor radiation after the TMI disaster, David Bear
(formerly Bloombaum) - prepared a report analyzing the Kemeny
Commission findings. ...
rogerhollander.wordpress.com/category/current-posts/political.../environment
-political-commentary-rogers-current-posts/
-
The House Plant Expert
... was also hired to monitor radiation after the TMI disaster, David
Bear (formerly Bloombaum), prepared a report analyzing the Kemeny
Commission findings. ...
west-little-river-sc1-xyz-sas.ods.org/the-house-plant-expert/
Startling Revelations About Three Mile Island (Nuclear) Disaster ...
Apr 3, 2009 ... who was also hired to monitor radiation after the TMI
disaster, David Bear (formerly Bloombaum) - prepared a report
analyzing the Kemeny ...
www.ucimc.org/content/startling-revelations-about-three-mile-island-nuclear-
disaster
-
David Bear (Bloombaum)
Grover Cleveland High School
Reseda, CA
Class of 1964
------------------------------
Message: 4
Date: Thu, 30 Apr 2009 10:44:00 -0400
From: William Levy
Subject: Re: [ RadSafe ] Anyone have a comment ? about radon risk and
226 Ra in milk ??
To: Steven Dapra
Cc: radsafe@radlab.nl
Message-ID:
Content-Type: text/plain; charset=windows-1252
Hi all again,
no counter just math radon at equilibrium = emanating fraction of 226Ra
Bill
On Tue, Apr 28, 2009 at 10:32 PM, Steven Dapra wrote:
> April 28
>
> Quoted from below: "and indeed, 0.3 pCi/g is an EXTREMELY small
> amount."
>
> Yes it is, isn't it? I wonder what kind of counter was used to
> count this three-tenths of a pico (trillionth of a) Curie, and how long
the
> counter had to count in order to count so little. Three-tenths of
> trillionth isn't very much. . . . On the other hand, it is a whole three
> hundred quadrillionths!
>
> Steven Dapra
>
>
>
> At 04:32 PM 4/28/09 -0400, William Levy wrote:
>
>> How about a CHP reply to the post
>>
>> I made the following post ia Inspection News "By the way we are finding
>> some 226Ra in the recently tested drywall samples. Highest so far 0.332
>> pCi/g Is this enough for an indoor radon problem given the large areas of
>> sheetrock ?? don't know yet
>>
>> Bill
>>
>> William Levy
>>
>> Associated Radon Services
>>
>> wlevy@radonserv.com
>> This thread is located at:
>>
>>
http://www.inspectionnews.net/home_inspection/environmental-pests-health-saf
ety-home-inspection-commercial-inspection/13134-new-mould-sampling-myths-pag
e-new-post.html
>>
>> THIS IS THE REPLY BY:
>>
>> Caoimhmn P. Connell
>> Forensic Industrial Hygienist
>> Forensic Industrial Hygiene
>>
>>
>> William Levy says By the way we are finding some 226Ra in the recently
>> tested drywall samples. Highest so far 0.332 pCi/g Is this enough for an
>> indoor radon problem given the large areas of sheetrock ?? don't know
yet
>>
>> Yes, William, we do know - No William it is not a problem, and indeed,
0.3
>> pCi/g is an EXTREMELY small amount. And by the way, I got a kick out of
the
>> use of three significant digits in your post (0.332). If you were to look
at
>> the data, you would probably find a standard deviation of 20 or higher,
>> therefore the first significant digit is not reliable much less the last
>> two. In any event even if it were 500 pCi/g, it still wouldnt be an
issue
>> (my goodness, a glass of milk runs at about 1,200 pCi/g!)
>>
>> Considering for a moment that the average person reading this post has
>> about 150 grams of potassium in their body right now. William, as you sit
>> and read this, if you are a normal human, YOU are irradiating 4,400 Bq
>> (120,000 pCi) of K40, (that equates to about 4,400 radioactive
>> disintegrations per second)  so ask your colleagues to step away from
you
>> if you love them.
>>
>> Remember, not one study to date, NOT ONE, has demonstrated that radon as
>> seen in homes has been able to demonstrate that it increases the risk of
>> cancer one iota - and remember too, that the US EPA found that as radon
>> concentrations in a home go up, the cancer risk goes DOWN.
>>
>> Cheers!
>> Caoimhmn P. Connell
>> Forensic Industrial Hygienist
>> Forensic Industrial Hygiene
>>
>> Anyone have a comment ??
>>
>> Bill Levy
>> William Levy
>> ASSOCIATED RADON SERVICES
>> 5136 SE Orange St. Stuart, FL 34997
>> 800-741-0629 772-219-4334 Fax 772-287-1341
>> www.radonserv.com wlevy@radonserv.com
>>
>
>
> _______________________________________________
> 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://radlab.nl/radsafe/radsaferules.html
>
> For information on how to subscribe or unsubscribe and other settings
> visit: http://radlab.nl/radsafe/
>
>
--
William Levy
ASSOCIATED RADON SERVICES
5136 SE Orange St. Stuart, FL 34997
800-741-0629 772-219-4334
Fax 772-287-1341
www.radonserv.com wlevy@radonserv.com
------------------------------
Message: 5
Date: Thu, 30 Apr 2009 10:55:50 -0400
From: Clayton J Bradt
Subject: [ RadSafe ] Biological dose measures promise new view of
cardiac imaging risk
To: radsafe@radlab.nl
Message-ID:
Content-Type: text/plain; charset=ISO-8859-1
Below is the url for a fascinating article on AuntMinnie:
It references presentations at the 2009 European Congress of Radiology, by
investigators from the Institute of Radiology, University of
Erlangen-N|rnberg, in Erlangen, Germany, and Saarland University in
Saarbr|cken, Germany, who measured the direct in vivo effects of ionizing
radiation on blood DNA in cardiac CT and angiography exams. They compare
the measurements to traditional dose-length-product and dose-area-product
measurements of radiation dose. Their technique involves counting double
strand breaks in lymphocytes before and after irradiation.
Is anyone familiar with the original studies upon which this article is
based?
Some excerpts from the article and some questions/comments from me:
1) "Among all the biological effects of ionizing radiation in the body,
DSBs are among the most significant effects."
>>>>>What is the basis for this statement? Are we assuming DSBs cause
cancer? If so, how do asbestos fibers, benzene and human papilloma virus
cause DSBs?
2)"The exposure of mammalian cells to ionizing radiation causes DSBs within
minutes."
>>>>>Why does it take so long, I would think the breaks would be
instantaneous once the secondary electron breaks chemical bonds on both
rails of the helix?
3) "...during a normal working day, we could not find signs of biological
effects in cardiologists."
>>>>>This suggests a low dose/low dose-rate threshold for biological
damage. Is LNT now defunct, or can someone save it?
Clayton Bradt
dutchbradt@hughes.net
IMPORTANT NOTICE: This e-mail and any attachments may contain confidential
or sensitive information which is, or may be, legally privileged or
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the addressee. If you received this in error or from someone who was not
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------------------------------
Message: 6
Date: Thu, 30 Apr 2009 13:28:21 -0700
From: "Cary Renquist"
Subject: RE: [ RadSafe ] Anyone have a comment ? about radon risk
and226 Ra in milk ??
To: "Steven Dapra" ,
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
0.3 pCi/g is not all that small...
For transuranics, the DL that we get from our vender on our urine bioassay
samples is typically ~0.002 pCi/liter range (we request 0.006).
Assuming unit density, that would be 0.002/1000 pCi/g (0.002 fCi/g).
I think they typically do a 40-48 hour count with a surface barrier
detector.
I'm sure that there is a technique for precipitating Ra out of a solution
created by dissolving the drywall in something like sulferic acid...
Depending on the chemical yield, the numbers that they cite seem possible.
Cary
---
Cary Renquist
RSO, Eckert & Ziegler Isotope Products
Office: +1 661-309-1033
cary.renquist@ezag.com
-----Original Message-----
From: radsafe-bounces@radlab.nl [mailto:radsafe-bounces@radlab.nl] On Behalf
Of Steven Dapra
Sent: Tuesday, 28 April, 2009 19:33
To: radsafe@radlab.nl
Subject: Re: [ RadSafe ] Anyone have a comment ? about radon risk and226 Ra
in milk ??
April 28
Quoted from below: "and indeed, 0.3 pCi/g is an EXTREMELY small
amount."
Yes it is, isn't it? I wonder what kind of counter was used to
count this three-tenths of a pico (trillionth of a) Curie, and how long the
counter had to count in order to count so little. Three-tenths of
trillionth isn't very much. . . . On the other hand, it is a whole three
hundred quadrillionths!
Steven Dapra
At 04:32 PM 4/28/09 -0400, William Levy wrote:
>How about a CHP reply to the post
>
> I made the following post ia Inspection News "By the way we are finding
> some 226Ra in the recently tested drywall samples. Highest so far 0.332
> pCi/g Is this enough for an indoor radon problem given the large areas of
> sheetrock ?? don't know yet
>
>Bill
>
>William Levy
>
>Associated Radon Services
>
>wlevy@radonserv.com
>This thread is located at:
>http://www.inspectionnews.net/home_inspection/environmental-pests-health-sa
fety-home-inspection-commercial-inspection/13134-new-mould-sampling-myths-pa
ge-new-post.html
>
>THIS IS THE REPLY BY:
>
>Caoimhmn P. Connell
>Forensic Industrial Hygienist
>Forensic Industrial Hygiene
>
>
>William Levy says "By the way we are finding some 226Ra in the recently
>tested drywall samples. Highest so far 0.332 pCi/g Is this enough for an
>indoor radon problem given the large areas of sheetrock ?? don't know yet"
>
>Yes, William, we do know - No William it is not a problem, and indeed, 0.3
>pCi/g is an EXTREMELY small amount. And by the way, I got a kick out of
>the use of three significant digits in your post (0.332). If you were to
>look at the data, you would probably find a standard deviation of 20 or
>higher, therefore the first significant digit is not reliable much less
>the last two. In any event even if it were 500 pCi/g, it still wouldn't be
>an issue (my goodness, a glass of milk runs at about 1,200 pCi/g!)
>
>Considering for a moment that the average person reading this post has
>about 150 grams of potassium in their body right now. William, as you sit
>and read this, if you are a normal human, YOU are irradiating 4,400 Bq
>(120,000 pCi) of K40, (that equates to about 4,400 radioactive
>disintegrations per second) ... so ask your colleagues to step away from
you
>if you love them.
>
>Remember, not one study to date, NOT ONE, has demonstrated that radon as
>seen in homes has been able to demonstrate that it increases the risk of
>cancer one iota - and remember too, that the US EPA found that as radon
>concentrations in a home go up, the cancer risk goes DOWN.
>
>Cheers!
>Caoimhmn P. Connell
>Forensic Industrial Hygienist
>Forensic Industrial Hygiene
>
> Anyone have a comment ??
>
>Bill Levy
>William Levy
>ASSOCIATED RADON SERVICES
>5136 SE Orange St. Stuart, FL 34997
>800-741-0629 772-219-4334 Fax 772-287-1341
>www.radonserv.com wlevy@radonserv.com
------------------------------
Message: 7
Date: Thu, 30 Apr 2009 23:05:52 +0200
From: Dan W McCarn
Subject: RE: [ RadSafe ] Anyone have a comment ? about radon risk
and226 Ra inmilk ??
To: "'Cary Renquist'" , "'Steven Dapra'"
,
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
Hi Cary:
Barium Chloride is the normal agent for precipitating Ra-226 out of a
solution bearing some sulfate ion. It co-precipitates the Radium along with
BaSO4. As I recall, it is also used to precipitate Ra out of natural water
samples as well as mining process waters.
Dan ii
--
Dan W McCarn, Geologist
8, Le Buisson Sainte Anne
78860 Saint-Nom-la-Brethche
+33.(0).1.74.09.03.09 (Home)
+33.(0).6.47.86.05.25 (Mobile)
+1-505-240-6872 (Skype)
HotGreenChile@gmail.com (Private email)
-----Original Message-----
From: radsafe-bounces@radlab.nl [mailto:radsafe-bounces@radlab.nl] On Behalf
Of Cary Renquist
Sent: Thursday, April 30, 2009 22:28
To: Steven Dapra; radsafe@radlab.nl
Subject: RE: [ RadSafe ] Anyone have a comment ? about radon risk and226 Ra
inmilk ??
0.3 pCi/g is not all that small...
For transuranics, the DL that we get from our vender on our urine bioassay
samples is typically ~0.002 pCi/liter range (we request 0.006).
Assuming unit density, that would be 0.002/1000 pCi/g (0.002 fCi/g).
I think they typically do a 40-48 hour count with a surface barrier
detector.
I'm sure that there is a technique for precipitating Ra out of a solution
created by dissolving the drywall in something like sulferic acid...
Depending on the chemical yield, the numbers that they cite seem possible.
Cary
---
Cary Renquist
RSO, Eckert & Ziegler Isotope Products
Office: +1 661-309-1033
cary.renquist@ezag.com
-----Original Message-----
From: radsafe-bounces@radlab.nl [mailto:radsafe-bounces@radlab.nl] On Behalf
Of Steven Dapra
Sent: Tuesday, 28 April, 2009 19:33
To: radsafe@radlab.nl
Subject: Re: [ RadSafe ] Anyone have a comment ? about radon risk and226 Ra
in milk ??
April 28
Quoted from below: "and indeed, 0.3 pCi/g is an EXTREMELY small
amount."
Yes it is, isn't it? I wonder what kind of counter was used to
count this three-tenths of a pico (trillionth of a) Curie, and how long the
counter had to count in order to count so little. Three-tenths of
trillionth isn't very much. . . . On the other hand, it is a whole three
hundred quadrillionths!
Steven Dapra
At 04:32 PM 4/28/09 -0400, William Levy wrote:
>How about a CHP reply to the post
>
> I made the following post ia Inspection News "By the way we are finding
> some 226Ra in the recently tested drywall samples. Highest so far 0.332
> pCi/g Is this enough for an indoor radon problem given the large areas of
> sheetrock ?? don't know yet
>
>Bill
>
>William Levy
>
>Associated Radon Services
>
>wlevy@radonserv.com
>This thread is located at:
>http://www.inspectionnews.net/home_inspection/environmental-pests-health-sa
fety-home-inspection-commercial-inspection/13134-new-mould-sampling-myths-pa
ge-new-post.html
>
>THIS IS THE REPLY BY:
>
>Caoimhmn P. Connell
>Forensic Industrial Hygienist
>Forensic Industrial Hygiene
>
>
>William Levy says "By the way we are finding some 226Ra in the recently
>tested drywall samples. Highest so far 0.332 pCi/g Is this enough for an
>indoor radon problem given the large areas of sheetrock ?? don't know yet"
>
>Yes, William, we do know - No William it is not a problem, and indeed, 0.3
>pCi/g is an EXTREMELY small amount. And by the way, I got a kick out of
>the use of three significant digits in your post (0.332). If you were to
>look at the data, you would probably find a standard deviation of 20 or
>higher, therefore the first significant digit is not reliable much less
>the last two. In any event even if it were 500 pCi/g, it still wouldn't be
>an issue (my goodness, a glass of milk runs at about 1,200 pCi/g!)
>
>Considering for a moment that the average person reading this post has
>about 150 grams of potassium in their body right now. William, as you sit
>and read this, if you are a normal human, YOU are irradiating 4,400 Bq
>(120,000 pCi) of K40, (that equates to about 4,400 radioactive
>disintegrations per second) ... so ask your colleagues to step away from
you
>if you love them.
>
>Remember, not one study to date, NOT ONE, has demonstrated that radon as
>seen in homes has been able to demonstrate that it increases the risk of
>cancer one iota - and remember too, that the US EPA found that as radon
>concentrations in a home go up, the cancer risk goes DOWN.
>
>Cheers!
>Caoimhmn P. Connell
>Forensic Industrial Hygienist
>Forensic Industrial Hygiene
>
> Anyone have a comment ??
>
>Bill Levy
>William Levy
>ASSOCIATED RADON SERVICES
>5136 SE Orange St. Stuart, FL 34997
>800-741-0629 772-219-4334 Fax 772-287-1341
>www.radonserv.com wlevy@radonserv.com
_______________________________________________
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://radlab.nl/radsafe/radsaferules.html
For information on how to subscribe or unsubscribe and other settings visit:
http://radlab.nl/radsafe/
------------------------------
Message: 8
Date: Thu, 30 Apr 2009 19:14:25 -0700 (PDT)
From: al@solidsurfacealliance.org
Subject: [ RadSafe ] Re: radsafe Digest, Vol 195, Issue 3
To: radsafe@radlab.nl
Message-ID:
Content-Type: text/plain; charset=utf-8
This is not the first time Mr. Connell has ran loose with the facts nor is
it the first time he has used ridicule rather than accurate facts. Allow me
to point out some of the mistruths he used in his post. I am serving on an
national standards committee that is looking into ways to defend nuclear
power and nuclear medicine, with one of the ideas being to develop a website
for journalists, giving some basic information about radiation in layman
terms. Just as well write something that explains the potassium issue and
get some expert feedback.
B
Mr. Connell wrote : "(my goodness, a glass f (sic) milk runs at about 1,200
pCi/g!)"
B
I am finding that 1.5 to 1.3 pCi/g is the potassium level of milk or 332 to
285 pCi/serving. So Mr. Connell is off by a factor of 3.6 to 4.2 so far. If
Mr. Connell is correct on the 150 grams of potassium in the human body (I
think that is a bit low) only 0.012% will be K40, the balance being stable
(non radioactive) potassium 41 and 39. That would be .018 grams of
radioactive pottasium.
B
"YOU are irradiating 4,400 Bq (120,000 pCi) of K40,..."
B
Okay, 4,400 Bq can also be expressed as 120 nCi, and and if we are going to
trivalize trillionths of a curie, we ought to trivalize billionths of a
curie as well.
B
A small home will have 4,000 square feet of drywall, or 166 cubic feet. The
a typical male human body has around 2.5 cubic feet, or 66 times less than
the drywall in a small home. If this is natural gypsum drywall, 15 mBq/g
(0.4 pCi/g), the 160 cubic feet of drywall has over 3,000,000 grams and is
putting off 46,267,200 mBq from the uranium content alone. If this is by
product gypsum, figure 573,713,280 mBq coming from the drywall. If you
include the potassium and thorium content, multiply those figures by 1.3 to
11.4 depending upon drywal type. So ask your colleagues to live out in a
field you if you love them.
B
And what effect will the half life have when comparing potassium 40 to
radon? K40 has a half life of of 1.250C109 years. Radon half life is 3.8
days, which would you rather have inside your body given equal amounts?
Would you rather have a stable Argon 40 daughter product in your body or
would you rather have Po 218, Pb 214, Bi 214, and the rest of Radon progeny?
My point, besides showing Mr. Connells sloppy facts, is that added to the
ridicule of William's post, the assumption that there was a standard
deviation of 20 (would that not put this result below the minimum detection
levels?), and the statement that .3 pCi/g is an "extremely" small amount,
all point to an attempt to mislead the public. Mr Connell was quite skillful
in leading the discusion from radon in building materials to potassium in
the human body.
B
"Remember, not one study to date, NOT ONE, has demonstrated that radon as
seen in homes has been able to demonstrate that it increases the risk of
cancer one iota b
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