- 9 « ingestion of terrestrial foods assuming diet at the time of return for each of the island groups; Table 240, pp. II-56 to 58, Vol. II for dosage from ingestion of terrestrial foods assuming a 10-year post return diet for each of the island groups. the ingestion of 2 The critical organ (bone) dose resulting from 2 39; 40, u is insignificant when compared to the dose From all other radionuclides. Estimates of doses for residents of Enewetak Atoll for various Living and dietary patterns presented in the Enewetak Radiological Survey Report, NVO-140 and in the Task Group Report considered the critical organ for the most sensitive segment of the population and all pathways and all significant contributors (radionuclides) to this exposure.* The judgments and recommenda- tions of the AEC Task Group were made using current guidance on radiation protection practices. Guidance from the Federal Radiation Council (FRC), International Commission on Radiological Protection (ICRP), and the National Council on Radiation Protection and Measurements (NCRP) was used. Page 9 - lines 22-25 - "However significant uptake of Pu from the gastrointestinal tract has been observed in young mammals and similar uptake may occur in young children." Comments: This statement is partially correct. Absorption of plutonium from the gastrointestinal tract is as much as 100 times greater in the newborn rat than in the adult. <A similar effect of enhanced absorption of normally .non-absorbed substances is observed.in the newborn of other animal species. If such an effect occurs in the human infant, it will probably persist for only a few days following birth. However, the predominantly milk diet consumed during this period is a very poor source of transuranic elements. *Dose assessments were made for the fetus, the newborn, children and adults, using exposure levels in the highest year predicted. Because of the extremely small (<0.001%) contribution to the bone dose due to plutonium, the transuranic elements were not included in this age-related assessment.