Appendix I Enewetak Radiological Survey Report Abstract els of contamination comparable to or The AEC has conducted a survey of the total radiological environment of Ene- less than those due to world-wide fallout wetak Atoll in order to provide data for in the United States. judgments as to whether or not all or any half, islands ALICE to IRENE are most part of the Atoll can be safely reinhabited. heavily contaminated, KATE to WILMA More than 4500 samples from all parts of are least contaminated, and JANET is at the marine, terrestrial, and atmospheric an intermediate level, On the northern These radiological data have been com- components of the Atoll environment were analyzed by instrumental and radiochemi- bined with the best information currently cal methods, In addition, an aerial sur- available on the expected diet of the Ene- vey for gamma-radiation levels was con- wetak people to estimate potential whole- ducted over all land areas, 906. IS%og 60 Co, and 239py are the body and bone doses to the population for predominant radioactive isotopes now 70-yr intervals after return. present, but their distribution is far from year integral dose estimates for unmodi- six living patterns at 5-, 10-, 30-, and fied (i.e., current) conditions are shown Islands on the southern half of uniform, the Atoll from ALVIN to KEITH have levTable A. Thirty- in Table A, The 30-yr integral dose for six living patterns, assuming unmodified conditions, 30-year integral dose, rem Unmodified conditions Living pattern Bone Inhalation Lung Liver External 4(-4) Bone, Ww. B. 0,83 Terrestrial one W, 0.14 0.053 0.84 Total one 7(-4) 9(-4) II 0.029 0.036 0,016 1.6 2,7 33 0,053 0.84 TIl 0.10 0.13 0,056 4.0 6.1 75 0,053 0.84 11 80 31 220 IV 0,47 0,59 0,24 210 0,053 0,84 Vv 0.11 6.13 0,058 2.9 2.7 33 0,053 0.84 VI 0,090 0,11 0,049 4.4 0.6 130 0.052 0,84 Living pattern I il 21 1,0 one I 10 2.1 Marine 3.8 4.4 35 5.7 14 Village island Agriculture Visitation FRED/ELMER/DAVID FRED/ELMER/DAVID ALVIN through KEITH Southern islands KATE through WILMA plus LEROY Northern islands 37 135 III JANET JANET Northern islands IV BELLE BELLE Northern islands Vv JANET KATE through WILMA plus LEROY Northern islands VI JANET ALICE through IRENE Northern islands I-]