INTERNAL DOSE The current Brookhaven report has a number of features that could make it useful for comparison with internal dose estimates for the Rongerik servicemen: closely related urinalysis data for the Marshallese and the servicemen are utilized in similar internal dose methodologies; the latest thyroid dose estimates (to the Marshallese) exceed any of the referenced previous estimates; and use is made of ICRP-30 (Reference 14), a likely foundation for the present analysis had all of the metabolic and dosimetric information for specific radionuclides been published when this work was initiated. Both the Brookhaven and the present assessments utilize I-!31 counts from urinalyses to arrive at initial body burdens of 1-131. From this, Brookhaven determines the levels of other iodine isotopes that lead to thyroid dose. The present analysis goes beyond, with use of Reference 11, to determine the levels of radionuclides generally, and from them and References 16-18, the doses to all relevant organs. However, the excretion values used in Reference [9 do not specifically relate to this analysis because of the longer duration of intake, the earlier urine sampling time, and the non-standard daily urine sample size, which is considered to influence iodine metabolism. The common basis for the ORNL-TM-190 (Reference 16) and ICRP-30 (References 14, 15) treatments of iodine metabolism is Reference 23. TM-190 has applied the Reference 23 prescription numerically as a function of time for various body compartments; ICRP-30 gives approximated time constants for these compartments, from which the user cam develop functional relationships. When this is done, the agreement between I-131 body burdens deduced from ICRP-30 and TM-190 is good, especially with the approximations taken into account. However, this agreement exists only for the more recent version of iodine metabolism expressed in ICRP-30, Part 3 (Reference 15) -- ICRP-30, Part | (Reference 14) has since been acknowledged as incorrectly stating the iodine parameters (References 15, 24). The most recent work on radionuclide metabolism, Reference 25, tabulates daily excretion fractions that are in close accord with this analysis, 29