Thresholds for carciogens

[M Nivas <motnivas@YAHOO.COM>]

>From Risk Policy Report,12/12/02, Vol.9, Number 11.



Once again EPA is renewing a push to harmmonize

cancer, and noncancer approaches.



"Currently, EPA employs a conservative assumption for

carcinogens in deriving regulatory levels below the

observable range in toxicity studies.  But for

noncarcinogens, EPA assumes there is a "thresold" on

anmount people can be exposed to without experiences

any negative health impacts.



But employing the cancer guildines may allow the

agency to find that some carcinogens have "thresolds"

or safe levels of expoosure whish has sparked

opposition from environmentalists and public health

advocates."



I am unable to download the article.  Nevehteless read

itif you can get a hold of it 



__________________________________________________

Do you Yahoo!?

Yahoo! Mail Plus - Powerful. Affordable. Sign up now.

http://mailplus.yahoo.com

************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/