uptake. Similarly americium is readily taken up from the gastrointestinal tract and accumulated in the liver, spleen and bone of mammals, and thus undoubtedly in man. Based on these considerations it is possible that uptake of americium in the food chain and its accumulation in the liver and skeletal tissue of _ man may be the critical path for exposure to .internal alpha emitters in the Enewetak Atoll area. The radiological survey is seriously inadequate with respect to americium distribution in both vegetation and in edible marine life to assess the consequent body burdens and heald consequences to future atoll inhabitants. (Personal Communication.) Dr. Geesaman independently identifies the same inadequacy in the DEIS and also finds a need for further study of the mechanisms by which plutonium contamination in the soil may find its way into the body. -2 The resuspension measurements and calculations ‘which relate the air contamination to the soil contamination are not immediately compelling, and deserve a much more careful analysis than I have given them. I would be surprised if the analysisis meaningful to factor of 100, when used to determine public health guidelines. Resuspension is poorly understood, it is sensitive to windspeed, soil Ss