fruit, roots, litter, and stems of All samples were handled separately, edible (Pandanus, breadfruit, coconut, placed papaya, banana, and squash) and non- LLL for processing and analysis. edible indicator (Seaevola and soll and vegetation samples were Messervsenmmidia) plants were collected analyzed both by Ge(Li) gamma spec~ when available. trosocopy and by wet chemistry for We attempted to take in plastic bags, and sent to at least one soil profile, and pre- the following radionuclides ferably as many as 1.2): three, through the root zone of each sampled plant. re Pe, 02m A LOm, In addition to the soil profiles taken area through the root zone of sampled 28, vegetation, other soil profiles were 00 ny | Sen 155), . (see Ref. 20 ee Meo. Ail 106 133e 4, Tog. 207s 228. 2385 239 ou 2400 24ly and OO a, collected on a random basis on both Bikini and Eneu Islands. The geoDATA ANALYSIS graphical locations of these profiles are also shown in Fig. 3. The surface-soil ALl profile samples were taken from pits dug with a backhoe. the pit was dug, After normal distributions and thus, we calculated geometric means of t 90. Sr, carefully cut back a few centimeters profile. undisturbed For each profile, to 15 cm) activities appear to approximate log- the sidewalls were to ensure a clean, (0 L5?7 Cs, 239,240, Pu, concentrations LOO-em* Island as in soil a whole and and for for 6065, d sn Eneu the four samples were collected from the side~- areas of wall at increments of For each profile collected, we plotted 5 em in the interest on Bikini Island. upper part and of 10 to 20 em through - (on semilog paper) the lower part of the profile. of the selected nuclides as a function Total the concentrations depth for profile samples varied from of depth. 25 to 105 cm. pared in an attempt (see Appendices A and B). carefully selected and classified by For example, collected leaves Because they are the major contri- butors to the dose from ingestion of were classified as young, mature, and senescent. Two ages of litter terrestrial foods 90, were readily identifiable and were collected accordingly. 3 We stages of growth were unavailable. For gree “soeica -5- inad 137, s, selected However, fruit samples representing different sheets eoemers to characterize the different areas of the islands Vegetation and litter samples were age. The profile data were com- and (Refs. 1, 2 4G é 239, 240 Pu 7, 8), were for more detailed analysis. calculated concentration factors these nuclides from measured