Table 4.4 #1 CHILDREN: FACTORS TO CONVERT ANNUAL OR 30-YEAR CONSTANT INTAKE (pCi/d) TO DOSE (ren) (The factors for adults in Tables 4.2 #1A & #15 are to be multiplied by the relative values in this table) Age at Exposure Nuclide and route 2 20 yr®/ 10 yro’ 1 yr?’ 30-year 0-6 mo>/’ exposure’ / Cs-137 Ingestion Inhalation 1 1 1 1 1.1 1.2 1.1 1.2 1.02 1.03 Sr-90 Ingestion 1 1.4 3.6 3.6 1.54 PU~239 4/ Ingestion Inhalation 1 1 1.3 1.3 2.1 2.4 22. 2.4 1.63 1.35 Inhalation 1 1.4 3.7 3.7 a/ Adult. b/ §6For children the commitment is until age 70. cf 30 years of constant “adult" intake, beginning at age 0. q/ Also Plutonium-240 and americium-241. 1.56 The adult dose commitment is for 50 years. Since the intake of children in fact is much smaller than of adults, the true value will be much closer to l. 5000b43 36