to the aboveground plant organs. Bikini, At leaves); the concentrations of 906, in the opposite is true for 157 06 (Table 12). the aboveground plant organs of a Because leaves are more often species are comparable to the concen- available trations retained in the roots of that we developed fruit-leaf concentration species. ratios to allow prediction of However, concentrations of for sampling than are fruit, radio- 13%o5 and 239, 2405, | are lower in the nuclide concentrations in fruit from aboveground plant organs than in roots those measured in leaves of (Table 11). species (Table 13). In addition, there are the same The small number differences in uptake among the vari- of samples makes it impossible to ous aboveground plant organs. statistically evaluate these ratios; any one species, 706. Within concentrations of we will do nd 239, 2404, are generally available. this as more data become We also calculated leaf- smaller in edible plant parts (e.g., leaf and fruit-fruit concentration fruit) ratios between different species for than in nonedible organs (e.g., Table 12. Summary of median soil-plant concentration factors. Concentration Factor, sr (pCi/g dry plant)/(pCi/g dry soil) . . 5 lesFy Mature Leaves Fruit Messerschmidta 0.48 a=" 3.7 Cocoanut O.16 0.024 Panadanus 0.91 Papaya Species Mature Leaves Mature Fruit Leaves Pruie -—-- 0.035 --7 3.0 2.5 O.015 --- 0.50 15.0 5.4 —s -a- L.00 0.43 3.) 8.2? 0.016 0.002 Breadfruit 1.80 0.76 1.6 7.9 0.027 aa Banana 0.73 0.05e° 0.42 a= 0.004 0.0003” Squagh 3.40" 0.15% 26.0" 56.04 a --- Pooled Scaevola & Not detected. 1974 unpublished plane and soil data from the same vicinicy. Whole plant. Seeds. -—279- 1?