1) . . 137 . . . the dietary intake of Cs was a major component contributing to the committed effective dose equivalent for the years after the initial contamination of the atolts, 2) . . . 65 . for persons whose diet included fish, Zn was a major component of committed effective dose equivalent during the first years post return, 3) a decline in the daily activity ingestion rate greater than that . : . . 7 resulting from radioactive decay of the source was estimated for 13 Cs, 65 on, 90... and 6000, 4) the relative impact of each nuclide on the estimate of committed effec- tive dose equivalent was dependent upon the time interval between initial contamination and rehabitation, and 5) the internal committed effective dose equivalent exceeded the external dose equivalent by a factor of 1.1 at Utirik and 1.5 at Rongelap during the rehabitation period. Few reliable 2395, measurements on human excreta were made. of the tentative data leads An analysis to the conclusion that a reliable estimate of commit- wo ted effective dose equivalent requires further research. a