TABLE 4.2 #15 INHALATION - FACTORS TO CONVERT ADULT "INITIAL DAILY INTAKE (pCi/d") TO COMMITTED “WHOLE BODYOR “TISSUE” DOSE (rem) FOR DIFFERENT PERIODS OF DAILY INTAKE ®/ Radionuclide & pericd CESTUM-137 C.E.D.E.o/ Red marrow Lungs Bone surfaces ! %,| initial year 1.0 E-S/ |9.9 EG 1.1 £E-5 0-30 year 2.2 E-4 2.0 E-5 2.2 E-4 : 30-70 year ; STRONTIUM-90 Liver : 9.4 E-6 1.0 E45 2.0 Ex4 2.2 E-4 i : initial year 7.7 ES 4.2 E-4 4.6 E6 ‘9.2 E-4 3.1 E-6 0-30 year 1.6 E-3 8.7 E=-3 9.5 E-5 1.9 £E-2 6.4 E-5 2.8 EO 5. E-1 30-70 year : PLUTONIUM-239.-240 & AMERICIUM-241 initial year 1.5 E-1 2.3 E-l 0-30 year 4.5 E-<O 6.9 EO . 2.3 E-2 ‘: 6.9 E-l 8.4 E-l 1.5 E-] 9.2 E-l] 1.12 E-2 2.0 E-l ] 30-70 year 6.0 E~ 9.2 EO | a/ It is assumed that the radionuclides in soil 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), and is consistent with ICRP recommendations (ICRP 1986, 1987). These factors allow for the fraction of radionuclide absorbed, its distribution and residence time in the body, the absorption and effectiveness of its radiation in the body, and its rate of physical decay. See p. 24. b/ Committed effective dose equivalent (whole-body dose). Other doses are committed dose equivalents (tissue dose). The C.E.D.E. is the sum of the dose equivalents to ll tissues of the body of a standard man, each weighted by the risk resulting fram a unit dose to that tissue as compared to the risk from a unit dose to the whole body. c’ E-5 signifies: 5000b31 x 105. 30