TABLE 4.2 #1A INGESTICN FACTORS TO CONVERT ADULT “INITIAL DAILY INTAKE (pCi/d)" TO COMMITTED “WHOLE BODY" OR '*TISSUE” DOSE (rem) FOR DIFFERENT PERIODS OF DAILY INTAKE #/ Radionuclide & perial CESIUN-137 initial year : iH Red marrow Lungs Bone surfaces Liver 1.7 Ee 11.7 ES 0-30 year 3.7 E-4 3.8 E-4 30-70 year 2.2 E-4 2.4 E-4 STRONTIUM-90 initial year 4.7 ES 2.4 E-4 1.8 E-6 5.3 E-4 1.8 E+ 0-30 year 9.2 Ed |5.0 E3 3.6 ES 1.2 E-2 | 3.6 ES 30-70 year 5.6 E-4 3.0 E-3 2.2 E-5 6.6 £E-3 2.2 ES 1.3 E-3 1.9 £E-3 1.0 E-8 2.4 E-2 4.2 E3 3.9 E-2 5.7 E-2 3.1 E-7 7.3 E-l ' 1.3 E-l 4.2 E77 9.6 El 1.7. El 7.3 E-2 13 El | | C.E.D.E.0/ PLUTONTUM-239.-240 initial year | 030 year ' 30-70 year AMERICTUM-241 | $1 E2 initial year 1.3. E-3 0-30 year 3.9 E-2 . 30-70 year Like C.E.D.E |7.4 E2 Like plutoniun 5.7 E-2 1.6 E< Like plutonium jf *’ It is assumed that the daily diet remains constant, but that the radionuclides in it decay spontaneously. The table provides dose factors in rem/picocuries/day. It is based on NRPB (1987) which provides factors in Sv/Bq (= 3.8 x rem/picocurie), anid is cnsistent with ICRP reccemendations (ICRP 1986, 1987). These factors allow for the fraction of radionuclide absorbed from the gut, its distribution and residence time in the body, the absorption and effectiveness of its radiation in the body, and its rate of physical decay. b Committed effective dose equivalent (whole-body dose). equivalents (tissue dose). Other doses are committed dose The C.E.D.E. is the sum of the dose equivalents to 1] tissues of the body of a standard man, each weighted by the risk of cancer resulting from a unit dose to that tissue as compared to the risk from a unit dose to the whole body. c/ E-5 sigifies: x 10>. 29 5000b3b