Aerokoj-Eneman Complex: Aerokoj, Aerokojlol Bikdrin, Lele Eneman 1-10 6-10 - East Eneman West Eneman 1-570 1-10 20-570 Enidrik 3-235 East Enidrik 3-30 West Enidrik LO-235 Lukoj * * ®°co, **® sb, 1°2Mpy, *°co, **5sb, 1°2Mpy 60-200 ®°co, **5sb, Jelete 60-130 * Oroken Bokaetoktok 15-45 10-35 * * Bokdrolul 20-50 Bokbata 10-30 Aomen-TIroij Complex: Aomen Lomilik Odrik, 5-20 20-330 Iroij 10-40 1°2Mpy °°co, **’cs * °°co, **°sb * *No soil sample or field spectra measurements. It should be noted that these are the ranges of our measure- ments. It is guite likely that there are locations where the local exposure rates are higher than the upper limits given in the table. Since **’cs has a half life of 30.5 years as compared to half lives of 2.7 and 5.2 years for **®°sb and °°co, respectively, the exposure rate levels on islands where *87cg5 was the major contributor, most importantly Bikini, can be expected to persist at almost the current levels for some time to come with only slight reductions due to decay and weathering. Studies of *°’Cs penetration into soils usually have indicated that in undisturbed soils with high organic content very little penetration of **’c¢s takes ~ Al -