11. A comprehensive air sampling program should be conducted over a period of 12 consecutive months under conditions closely approximating human habitation and expected soil disturbance. This would add to the body of available information on radioactivity levels in air. This program could be conducted coincident with and in support of cleanup operations. 12. Base-line surveys of body burdens and urine content of 13766 and 905, should be made for the Enewetak people prior to return to Enewetak Atoll, after the first year of residence, and as appropriate thereafter. Resurveys of the environmental radiation and radioactivity levels should be made starting in the first year of return and repeated every other-year. To be determined is the adequacy of the diet and the actual average daily dietary intake of radioactivity for various age eros for comnaricoan with actimated lavale and haw radioactivity levels in water, air, soil, plants, and animals are changing with time. (Included should be measurements of radionuclide content of air and collection of information on the chemical and physical form and size distribution of particles in the air containing 2395u.) Information from such surveys will provide a continuing check of the radiological status of the people and the environment and will assure that the exposure criteria is not being apprceached or exceeded. 13. Considering that the method of disposal of plutonium contaminated soil and scrap has not yet been decided, that not enough information is availabie to determine whether it is feasible to remove plutonium from the soil to reduce the amount of material requiring disposal, and not wanting such probiems to deiay cleanup and rehabililation of the Atoll, the Task Group recommends the following: -30-