[ RadSafe ] Re:Reasonable risk?

[John Jacobus]

Jerry,
Yes, 1 mSv/yr (100 mrem/yr).  

For occupational workers, I would also say that 5
mSv/yr (500 mrem/yr) as there is no requirement for
monitoring, so therefore the risks must be minimal.
For monitored doses between 500 and mSv (5,000 and 500
mrem) one would monitor exposure results to determine
if any changes in personnel exposures have changed.
However, changes in shielding or work practices would
have to be based on reasonable costs.

If anyone besides Jerry Cohen, who does not work in
the field of health physics, has any comments, I would
be interested in their perspectives.

--- Jerry Cohen <jjcohen at prodigy.net> wrote:

> John,
>      I don't understand what "toxins" have to do
> with it. In Industrial Hygiene, as long as any
> exposure is below the TLV level, no action to
> further reduce it is necessary. So, let me rephrase
> my question. In radiation safety, is there any level
> of exposure so low that action to further reduce it
> can be considered unwarrented?
>    
>   
> John Jacobus <crispy_bird at yahoo.com> wrote:
>   Jerry,
> As an industrial hygienist, how would you answer
> this
> question with the toxins you have to consider?
> 
> --- jjcohen at prodigy.net wrote:
> 
> > John,
> > The obvious presumption of this question is that
> > somehow the worker
> > needs to be better protected. What's the basis for
> > this presumption?
> > Jerry Cohen
> > 
> > 
> > ----- Original Message ----- 
> > From: "Sandy Perle" 
> > To: "Sandy Perle" ;
> > ; "Flanigan,
> > Floyd" ; "Michael Bohan"
> > ;
> > ; "John Jacobus"
> > 
> > Sent: Friday, April 21, 2006 10:56 AM
> > Subject: Re: [ RadSafe ] Re:Reasonable risk?
> > 
> > 
> > > On 21 Apr 2006 at 10:20, John Jacobus wrote:
> > >
> > > > How do you determine how better to protect the
> > > > worker. Do you go with days-lost-on-the-job or
> > mrem?
> > >
> > > John,
> > 
> > 
> 
> 
> +++++++++++++++++++
> "A scientist's aim in a discussion with his
> colleagues is not to persuade, but to clarify." 
> Leo Szilard
> -- John
> John Jacobus, MS
> Certified Health Physicist
> e-mail: crispy_bird at yahoo.com
> 
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+++++++++++++++++++
"A scientist's aim in a discussion with his colleagues is not to persuade, but to clarify." 
Leo Szilard
-- John
John Jacobus, MS
Certified Health Physicist
e-mail:  crispy_bird at yahoo.com

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