Based on these resuspension studies, including mass loading, EF, and POE, and a living pattern that places island residents in normal conditions 23 h per day and in high-activity conditions for I h per day for their entire life, the inhalation doses from resuspended Pu and Am are less than 1% of the estimated 30-y integral bone marrow dose and about 8 to 10% of the bone surface latest dose using the distribution of Pu and Am. ICRP parameters for gut transfer and The doses via inhalation from !37cs and 99Sr are several orders of magnitude less (Robison et al., 1982b, 1987). w DISCUSSION This report includes the information available on the radionuclide concentrations in vegetation, soil, water, and animals at Bikini Atoll. data are decay corrected to year 1987 unless stated otherwise. The | The radionuctide concentration in marine species are presented in Noshkin et al. (1988). No attempt is made here to estimate potential radiological) doses; the total estimated dose for Bikini and Eneu Islands from all exposure pathways can be found in Robison et al. (1982b), and external exposures have been reported in Tipton and Meibaum (1981) and Gudiksen et al. (1976). For reference, the terrestrial food chain has been identified as. the source of about 80% of the potential, total estimated dose. The external gamma-—exposure pathway is the second largest contributor to the total dose; the marine-food-chain pathway, inhalation pathway, and cistern and ground water pathway contribute in a minor way to the total estimated dose. Cesium-137, through the terrestrial food chain and external gamma exposure, accounts for more than 90% of the estimated 30-y integral effective dose; 90Sr accounts for about 3 to 7% of the bone marrow and bone surface cells 30-y integral dose. The transuranic radionuclides contribute about 2% of the bone marrow 30-y integral dose and about 15 to 20% of the bone surface cell dose. SOIL Bikini Island, the major residence island at the Atoll, has the highest concentrations of !3/Cs in the soil and vegetation at the Atoll]. 64 All other