frying was done this way (Na80). Roasting of green breadfruit, fish and nuts was done over a coconut shell or husk fueled fire, when it had turned to coals (Na80). Ground ovens, used for baking breadfruit, were normally covered with banana leaves to prevent large amounts of dirt and dust from entering (Na80). These outdoor preparation and cooking modes allowed significant amounts of BRAVO debris to be mixed with food. Table 8 was the summary of activity per unit area and time post detonation for Rongelap Island for nuclides contributing significantly to thyroid dose. The tabulation was based on Bikini Ash and was done in the same way as previously indicated —from’ the 12 hour post detonation values given in Table 5. Instantaneous surface activities during fallout deposition were modified by the actvity deposition rate indicated by the slope of Fig. 4. The activity per unit area of selected nuclides at Utirik Island was estimated by ratio of the exposure rates at Rongelap and Utirik and during fallout deposition by adjusting for activity deposition rate as indicated by the slope of Fig. 6. method was used to estimate the surface activity at Sifo Island. This same The exposure rate ratio between Rongelap and Sifo Islands was 3.0 to 1.0 and between Rongelap and Utirik Islands, 9.5 to 1.0. Although BRAVO debris was not highly soluble in water, calcium carbonate and hydrated calcium oxide (the matrix in which BRAVO fallout was entrained) were both highly soluble in acid (Co72). Therefore ingestion of BRAVO debris would result in release of radioiodines and other nuclides trapped in the granules due to the acid environment of the stomach. The mass and volume of BRAVO fallout granules was insignificant relative to the normal amount of food eaten per meal, about 400 g for adults (Ev66). The mass of BRAVO fallout per m- at Rongelap Island was 4.4 g and the volume was 1.9 cm, about four 29