conducted at Rongelap Atoll by Dr. V. Noshkin; the sources of the data are identified in the table footnotes. The data in the tables have Radionuclides in Terrestrial[Foods been decay corrected from the date of the The mean concentrations of radionuclides in food crops grown on RongelapIslafd are listed in Tables 5 and 6. The numbers of samples that Radionuclides in Soil values, as well as the median And range of values, are listed in Appendix B. The distribution of our sampling site on Rongelap reported results to our target date of 1995. The median concentration of 137Cs, 90Sr, 239+240Pu, and 241Am in surface soil for interior and village areas, and soil profiles on Rongelap Island are listed in Table 4. The decrease in activity with depth is exponential with about 80% of the activity in the top 15 cm ofthesoil column. We have included in the diet model, 100 mg/d of surface soil that may contaminate the food during preparation or on the handsof the people where it might be ingested. Consequently, for the Imports Available diet, were averaged to derive eachfof the mean Island is shown in Figure 2. The concentrations of 137Cs fin foods from RongelapIsland, based onall the fata from 1986 through 1993, are compared in Table 7 with the adjusted values used in the 1942 preliminary assessment (Robison et al., 1982) ghat was based on the 1978 NMIRS. The reason for adjusting th 1978 data is personnel conducting the survep collected ail outlined below. During the 197 NMIRS, U.S. coconut, Pandanus, breadfruit, other vegetation, and soil samples. All of the cocongts collected on surface soil accounts for 56% on the 239+240Py daily intake, and 72% for the 241Am daily intakes. For the Imports Unavailable diet, soil ingestion accounts for 22% and 39% for the Rongelap Island (and the otherjislands) were assumed to be drinking coconufs. The 137Cs concentration of 0.20 Bq g-! (5.5 pri giin these negligible compared to the other foods. In Tables 5 and 6, the mean surface soil concentrations for 137Cs, Sr, 239+240Pu, and 241Am are presented to drinking coconut meat value ang was taken as village versus the interior of the island. We assume people spend 16 h d-! in the village, 1h d-1 on the beach, and 7 h d-! in the interior of Rongelap Island. More detailed results showing assistants select and classify the coconuts as information for the village and the interior of RongelapIsland arelisted in Appendix A. The majority of 241Am in soil profiles below 10 cm are under the minimum detection limits. The values for 241Am presented in this report are ratio of the coconut meat. If the c@conut meat dry samples collected and analyzed since we do not report values below the minimum detection limit. Therefore, the statistics presented would be much lower if we had real values for the coconuts collected in 1978, we find that most of 239+240Pu and 241Am daily intakes. The daily intake of 137Cs and 99Sr via soil ingestion is account for the time distribution spent in the coconut samples was used for the drinking coconut meat value in the dose assessmegt. A value for copra meat was estimated from fhis “assumed” 0.28 Bq g-! (7.6 pCi g-1). As we progressed with our prderam to the present, we have hagl from 1979 Marshallese drinking or copra coconuts. Wq@ found that we could differentiate between drinking coconuts mean, median, ranges and other statistical and copra coconuts, as selected by the Marshallese staff, by measuring|the dry to wet based on only a small number of the total to wet ratio is greater than 90.45, then the coconuts fall into the copra class] and if the ratio is less than 0.45, they fall intb the drinking coconutclass. When we apply these qriteria to the samples that gave us minimum detection limits. For the soil depths of 10-15 cm, 15-25 cm, 25-40 and 40-60 cm the percent below the minimum detection limit are approximately 50%, 70%, 80%, and greater than 80%. the coconuts collected by U.S. pgrsonnel in 1978 were really copra coconuts; only three of the seventeen coconut samples| ollected were drinking» coconuts. pavently: the the 1982 dose assessment was the drinking coconut class beds concentration is higher in copra oconuts drinking coconuts. 16 than in