11. A comprehensive air sampling program should be conducted over a period of 12 consecutive monthsunder conditions closely approximating human habitation and expected soil disturbance. This would add to the body of available information on radioactivity levels in air. This. programcould be conducted coincident with and in\ SUppOre of cleanup operations. 12. Base~line surveys of body burdens and urine content of 13764 and 90 Sr should be made for the Enewetak people prior to return to EnewetakAtoll, 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 radtoactivity for wo woe eS meee Vese AWD eee “n= meee Eom 8s Vuypo a OP te wee em nee « RotiesOb PWS TU che 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 physicd form and size distribution of particles in the air containing 23954.) . a Information from such surveys will provide a continuing check of the radiological status of the people and theenvizonment and will assure that the exposure criteria is not being approached 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 available to determine whether it is feasible to remove plutonium from the soil to reducethe amount of material requiring disposal, and not wanting such problems to delay cleanup and rehabililation of the Atoll, the Task Group recommends the following: eK a Y — P O C E L B A L I A V A T S E B “7 ———EE- 2