HEAST risk estimates

[Anthony Barber <a.barber@qut.edu.au>]

Can anyone explain what the qualifier (denominator) is for the risk measure
used in the HEAST radionuclide carcinogenicity table?

Example - risk of contracting cancer from ingestion of Ac89 is given as
1.42E-10 risk per pCi or 3.84 risks for 1GBq ingested.
What is 3.84 risks? Is it 3.84%? or is it 3.84 cancers per million people
exposed or maybe it is 3.84 cancers per person exposed? (ha, ha)

I have read all the documents at the HEAST web page with no joy. Although
it is highly likely that I am simply displaying my ignorance or inablity to
comprehend documents.

All explanations gratefully accepted.

Regards


Anthony Barber
RSO - Queensland University of Technology
ph  61 7 3864 3566
fax 61 7 3864 3993
a.barber@qut.edu.au
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Why not?
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