Re: NESHAPS Help

[Larry Hoffman <hoff@lanl.gov>]

Paul,

Contact Linnea Wall. She also works at Berkeley. I think she wrote a thesis
on this very subject.

Larry 

At 09:44 AM 08/25/2000 -0500, you wrote:
>HELP!
>
>I have been trying (it appears unsuccessfully) to put some logic to 
>the many regulatory limits. Not the ones we normally think of as 
>limits. Ones like the EPA's limit of 4 millirem per year from 
>drinking water and 10 millirem under EPA's NESHAPS.
>
>OK, here is the question.
>
>I was under the impression that our exposure limits 5000 mrem WB per 
>year for workers and 100 mrem per year for members of the public were 
>risk based limits. That is these were based on cancer risk as found 
>in BEIR 5. However, I was under the understanding that the EPA's 
>"limit" of 10 mrem per year in the NESHAPS rule was a health based 
>limit.
>
>I am not trying to address the LNT model etc. My question is, what 
>was the basis for the NESHAP limit? Is it risk based or health based? 
>Can I get a reference?
>
>Thank you all for being there. I am grateful that there is a place to 
>go when I need to get information or advice from other HP 
>professionals.
>
>
>
>Paul Lavely
>UC Berkeley
><lavelyp@uclink4.berkeley.edu>
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