Apparent Discrepancy in Am241 ALI in EPA-11

["Michel, Lee S" <michel@BNL.GOV>]

Im hoping someone can explain the difference in Committed effective dose

equivalent in table 1 versus table 2 of FGR - 11 for Americium 241.



In table 1.b the ALI (inhalation) is 0.006 micro-Ci.   This would therefore

determine a dose of 100 mrem from an intake of 120 pico-Ci.

In table 2.1 the CEDE inidicated is 1.2E-4 Sv/Bq, which translates to

444,000 mrem per micro-ci.  This would therefore determine a dose of 100

mrem from an intake of 225 pCi.



Since I work at a DOE national Lab, I am interested in the 100 mrem level of

exposure to satisfy 10CFR835.



Any guidance on this apparent discrepancy would be appreciated.



Lee Michel, RRPT

Personnel Monitoring, Bldg 490

Brookhaven National Laboratory

Upton, NY 11973

(631)344-6306

michel@bnl.gov

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