re slightly from this general pattern; in uptake by fruit exceeds uptake by mature these cases, leaves by a factor of two to five. the measured uptake of Osy is equal to that of 137, How- s. 90 ever, more samples are needed to ver- -A comparison of the uptake of Sr, 137, Sy and 239,240 Pu shows that, ify the pervasiveness of these excep— in general, tions to the overall patterns observed. uptake is: squash (high; breadfruit, Iolo. » The distribution of 90. 239,240, in fruit and leaves Pandanus, and papaya (intermediate) ; and and banana and coconut follows similar patterns in the various species ; 90 SY In a given species, -studied. nd 2399 240 py the relative order of (low). Slight variations occur, depending on the A radionuclide under consideration. uptake by mature leaves is more quantitative ordering can be two to ten times. greater than that by . 137 ; Cs uptake measured in fruit. The made after greater numbers of all this study shows a different trend; ‘future surveys. tissues of plants are sampled in Acknowledgment Livermore Laboratory), We greatly appreciate the invaluable comments of Yook Ng (Lawrence Livermore avid John Holdren in reviewing this Crites manuscript. Rod For his aid We thank John Koshiver Dave Coles Laboratory), Tom (Lawrence Livermore Laboratory), Eagle (Lawrence Livermore Labora- tory), Harley Erwicker (Trust Terri- in statistical analysis of the data and Ora Lowe and Bill tory of Burke for their technical. Greenhouse (Brookhaven National Lab- assistance. oratory), Paul Gudiksen Livermore Laboratory), radiological survey of Bikini and Eneu (Lawrence Livermore Islands of Bikini Atoll was accom- Keller plished by a very intense and thorough ERDA), Dennis McBreen (Trust Territory effort of 21 people representing six of the Pacific Islands), Tommy McCraw different organizations. (Division of Operational Safety, ERDA), The field portion of the June 1975 of samples collected and The number the amount of information obtained during the the Pacific Islands), Nat Ben Mendoza (Lawrence Livermore Laboratory), Vic Nelson (University of ten- Vic Noshkin (Lawrence cooperation and diligent effort of Livermore Laboratory). (Environmental Vegas, Nevada), the Bruce Clege Vrank Reed (Environmental Protection Agency, Las Wayne Bliss Protection Agency, Bob (Nevada Operations Office, Washington), individuals: Gale Holladay Laboratory), day survey is a direct result of the following (Lawrence Vegas, Las Nevada), Jim Schweiger (Law- rence Livermore Laboratory), Robert (Lawrence —~36-