Table 7.
Total-body dosimetric average for external plus internal sources
for former Bikini residents.
Mean
Population
description
-
Adult males
Adult females
Children (age 5-14)
D.
Number
residence
interval
Dose equivalent
during residence
17
16
12
4.9
4.3
4.4
1100
830
1200
of persons
(yr)
interval (mrem)
Dose
equivalent
commitment
(mrem)
110
85
140
Other Atolls
The possible dose equivalents to people on some other atolls in the
northern Marshalls such as Likiep and Wot je would no doubt be considerably
below those to people living on Rongelap and Utirik, and the relative exposure
to the potent short-lived iodine isotopes would probably be considerably less.
The lower contamination of the islands in the southern rim of each test atoll
(Bikini and Enewetak) compared with that in the northern areas of the atoll indicates that the southern thrust of the fallout was much less than the easterly and northeasterly thrust.
E.
Reliability of Early Exposure Estimates
The absorbed dose estimates to the exposed Marshallese are approximate,
and the uncertainties in many of the parameters involved in obtaining them
make it impossible to state their statistical reliability.
1.
Whole-Body Doses (Gamma Radiation)
Since the radiometric readings on each inhabited island were relatively
uniform, the gamma doses received by the individuals on a particular island
are not thought to have varied greatly.
However,
the children, being smaller,
may have received somewhat higher doses than the adults.
cal findings in the exposed people,
Judging by the clini-
the dose estimates did not appear to be
far out of line with what one might expect on the basis of human and animal exposure data. The early gastrointestinal symptoms implied significant exposure
in the Rongelap people. The reduced symptoms in the populations on Ailingnae
and Rongerik and their absence in the Utirik group were in conformity with the
lower doses received by these populations. The degree of hematological depression (and the lack of clinical evidence of such depression, without lethality)
1s commensurate with the dose estimates in the Rongelap population. The
lesser hematological depression in the Ailingnae and Rongerik groups and its
absence (except for the slight decrease in platelets detectable only on a
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