Gow LESIONS IN MARSHALLESE EXPOS@yro FALLOUT
(AS OF MAY, 1974).
|
Marshall Island Group
(radiation dose-gamma)
<10
11-16
>16
all
-
(on Ailingne
In VESTA
Lesions
dose-rads
In-utero
gamma exposure)
Thyroid
Thyroid 1
Exposure
Rongelap (175 rads
Rongelap
Estimated
Age at
175 + ?
©
675 - 1440
335 - 675
335
-
488 -
9
Percent
33.3 (1/3)
12.5 (1/8)
8.1 (3/37)
32.8 (21/64)
(0/1
.
-
0
-
<10
40, - 80
0.0 (0/53)
all
-
3.2 (5/157)
<10
>10
<10
all
>10
Rongelap unexposed
all
Likiep unexposed (1970)
ai |
‘pose from
LIL,
rm
LILy5
=a nN
L149,
5833
22.2 (4/18)
22
5.4 (2/37)
4.7 (3/64)
2
Utirik” (14 rads gamma
exposure)
5.3 (1/19)
l
132
-
1
3
17
16.6
>16
all
15
Percent
49° (2/64
Island -69 rads gamma
exposure)
Lesicns
Surgery
89.5 (17/19)
.0
480
Malignant
Thyroid
3
5.8 (6/104)
4
4
0.6 (1/157)
-
1.6 (1/61)
4.5 (6/133)
0
2
2
-
_ 7
-
0.0 (0/31)
4.7 (5/106)
3.6 (5/137)
. O
0
0
-
-
3.6: (7/194)
1.0 (1/104)
aa”
2
°"I plus gamma dose,
Based on number of original people exposed.
in group.
In parentheses number of cases/total number
3mhe thyroid is considered fully developed by age 16.
Difference of opinion as to whether or not one lesion was malignant.
was that it was benign.
Majority opinion
>The more energetic shorter-lived isotopes of iodine contributed less to the total
thyroid dose in the Utirik people due to later fallout.
One might surmise also that the
biological effectiveness of the thyroid dose per rad would be less in that group.
Fifteen children 10-17 years of age at exposure in this group received estimated thyroid
doses between 22 and 40 rads.
In addition to thyroid lesions, one case of acute myelogenous leukemia was discovered
in September 1972 in a 19-year-old Rongelap boy who had received 175 rad gamma radiation
at one year of age. He died November, 1972.