Finally, the data clearly illustrates that at least 19% of the Bikini residents would have received a dose equivalent in excess of 5m Sv (0.5 rem) due to the ingestion of 137 Cs had the April 1978 activity ingestion rate of 137 Cs continued. This dose equivalent level does not include the dose equivalent from external radiation or other internally deposited radioactive material. Removal of the Bikini population from Bikini Atoll eliminated the 137¢, source term from the diet and limited the dose equivalent received by this population.