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 [RENE 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.
905, Slog 60
Co, and 23 8py 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-
uniform.
six living patterns at 5-, 10-, 30-, and
.fied (i.e., current) conditions are shown
Islands on the southern half of
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
Bone,
Terrestrial
Marine
W.B.
Bone
W.B.
Bone
WL B.
2.1
0.053
0.84
1.0
33
9,053
0.84
4.4
75
0,053
0.84
ll
80
210
0,053
0.84
31
220
I
7(-4)
9(-4)
4(-4)
0.83
0,14
II
0,029
0.036
0,016
1,6
2.7
III
0.10
0.13
0,056
{Vv
0.47
0.59
0,24
O.11
0.13
0,058
2.9
2.7
33
0.053
0.84
0,090
0.11
0.049
4.4
9.6
139
0.053
0,84
‘Vv
VI
Living
pattern
Toial
W, B,
4.0
10
6.1
21
“Bone
5.7
14
‘Village island
Agriculture
Visitation
I
FRED/ELMER/DAVID
ALVIN through KEITH
Southern islands
II
FRED/ELMER/DAVID
KATE through WILMA
Northern islands
plus LEROY
{II
JANET
JANET
Northern islands
Iv
BELLE
BELLE
Northern islands
Vv
JANET
KATE through WILMA
VI
JANET
ALICE through IRENE
plus LEROY
{-]
Northern islands
Northern islands
3.8
395
37
135