100 aya and breadfruit) are not growing now on TTT) all of the northern islands, the ubiquitous Messerschmidia and Scaevola were a sampled and analyzed extensively with the o 2%, 8 c 10 - wo a — a ~ 2 ° BQ 4 | c aA A . 4 Pe 2 a aa oO o a Cc ° “9 a o Yok able. 137 The correspondence between Cs activity in coconut meat and Messerschmidia and/or Scaevola fromthe a :v species" for estimating doses from the edible plants should they become avail- “a4 s 6 intent that they be used as "indicator same location is shown in Fig. 168. To increase accuracy, a o 4 a dcse estimates to the human population through the terrestrial vegetation pathway should be based on the geographical distribution of o° 9 radionuclides, 0 O.opL Lt f ft of ft 5 10 15 20 25 30 35 40 45 Island number In order to do this, how- _ever, a correlation between nuclide content of vegetation and nuclide content of soil must be established. Fig. 167. Concentrations of 9 Ose in coconut meat. and 13% 37 cs As an ex- ample of the correlations that have been developed, data for 137 as in Messerschmidia and scaevola vs 13% Cs in soil are shown in Fig. 169. Similarly, data obtained from rats — were found to correlate with the vegetation radionuclide levels, 100 :] 4 Messerschmidia oScaevola 10h , . — correlations for . For example, Cs in rat muscle vs Fig. 170, and for °°sSr in rat bone vs mb Messerschmidia /Scaevola are~ shown in Fig. 171. a 4 Three classes of data obtained from 1.0 Y= 1,27 x0-612\ 7 the terrestrial biota survey, therefore, oa 0.1 0.1 137 Messerschmidia/Scaevola are shown in QO Concentration in coconut — pCi/g, dry. the only mammals now found on the Atoll — | 1.0 1 10. ! 100 have been used to estimate potential human doses through the terrestrial food 1000 pathway: Concentration in indicator plant — e pCi/g, dry Data obtained from the edible organisms where they were available. Fig. 168. fiatistical correlation between 37Cs in coconut meat and 137Cs in Messerchmidia and @ Scaevola. Data obtained from the correlation between edible plants — indicator If-32