[ RadSafe ] Anyone have a comment ? about radon risk and 226 Ra in milk ??

[William Levy]

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 <sjd at swcp.com> 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 <Associated Radon Services> 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 at radonserv.com
>> This thread is located at:
>>
>> http://www.inspectionnews.net/home_inspection/environmental-pests-health-safety-home-inspection-commercial-inspection/13134-new-mould-sampling-myths-page-new-post.html
>>
>> THIS IS THE REPLY BY:
>>
>> Caoimhín 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!
>> Caoimhín 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 at radonserv.com
>>
>
>
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-- 
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 at radonserv.com