€ -20- particulates of respirable size. ee This level would result in the accumula- tion of adult organ burdens about equal to thac from fallout plutoniun © , On this basis the Colorado interim standard ‘may be at lease 10 times too high. (6) Call for a full disclosure of all past plutonium spills and accidental releases and conduct appropriate surveys. and cleanup operations. (7) Develop standards for americium and curium, with particular attention to their distribution in the food chain and their uptake from the gastro- intestinal , tract. (8) Give immediate attention to current plans of the U.S. Department of Defense and the U.S. Atomic Energy Commission to resettle Enewetak Atoll. The high levels of plutonium and americium on these islands and @ oh 1 +f gn the lagecn sediments are likely ts give risc ts trag te ‘on this small native population group.