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 -