Northern Marshall [slands
Aerial] Radiation Survey
_—
Preliminary Data Summary
Rongerik Atoll
Average Terrestrial] Exposure
Rate * (yu R/h at 1 meter)
Island
Number
Frame
Number
Marshallese
Total
Name
Gross Counts
137Cs
Component
6°Co
Component
G-1
74
Jedibberdib
2.6
2.1
<0.3
G-2
74
Latoback
4.7
4.5
0.3
G-3
70
Moterikku
-
G-4
70
Mortlock
4.9
4.9
<0.3
G-5
70
Bigonattam
5.2
5.2
0.3
G-6
70
Rongerik
4.8
4.6
0.3
G-7
85
-
-
"
G-8
85
-
-
-
G-9
85
Tarrowatt
-
-
-
G-10
64
Bokeredj
-
-
-
G-11
64
Enewetak
2.4
2.1
<0.3
G-12
102
Bock
4.7
4.6
0.3
.
,
-
* Extrapolated from aerial data obtained at an altitude of 38m (125 feet).
-
An
additional 3.3 uy R/h due to cosmic ray contributions must be added to obtain the
total external exposure rate.