37
8
T
*
T
T
T
T
T
RONGE LAP UNEXPOSED 1959
o
Sh
9
Rec 110 ®
x
x
*
ake
4
:
«<
s
*
°*
a *
.
t
°
5
s
*
.
oe
e
8
.
a*
*
:
.
*;
.
*
a
a
.
3
L
4
t
L
!
i
t
i
1
20
30
30
90
60
70
80
AGE CYR)
4
1
10
1
20
1
t
30
«a
1
|
30
60
|
7
J
Figure 43. Individuat red blood counts uf ¢xpused females
plotted against aye at 3 years post exposure, 1959 Solid
ao
AGE (YA)
line represents mean values for comparison female population.
Figure 42. Individual red blood counts of exposed males
plotted against age at 5 years post exposure. 1959. Solid
line represents mean values for comparison male population.
_———-
r
26 |
T
T
"
t
T
T
T
tT
T
T
PERCENT DIFFERENTIAL OF RED CELLS
T
BETWEEN THRESHOLDS
24
O=5 TEARS POST EXPOSURE
@: UNEXPOSED POPULATION
+
22 [
20+
;
-
”
ot
—
MEAN OF 53 NORMAL
AMERICANS AGE 215
AGE
5 8p
1
-=-- MEAN OF |? MARSHALLESE
>» i5
PERCENT
&
O16F
4
CUMULATIVE
Sra
O°
= i2t
“oh
8
6
4
ol
2
37
4
45
L
43
33
SJ
4
~e>
:
IS 20 28 30 35 40 45 50 55 60 6570 7580
4
FMRE SHOLD
ABC aio §
Figure 44. Cumulative distribution curve,
Rongelap red blood counts, 1959.
erythropoetic depression compared with the unexposed levels, but not as distinct as indicated by
erythrocyte counts in 1959. It would appear from
these findings that some bane marrow damage
persists at 5 years post exposure.
The Rongelap people generally havea slight
anemic tendency (very slightly microcytic) compared with Americans. The cause is unknown.
Apparently it is not due to iron deficiency, since
serum iron levels are generally normal. It may
possibly be based on another type of nutritional
Figure 45. Price-Jones sizing of red ceils showing mean of
17 Marshallese curves (from both exposed and comparison groups} compared with mean curve of 53 Americans.
deficiency. The serum proteins and serum vitamin
B,, levels, however, tended to the high.
The continued high level of eosinophils is un-
explained. It was not believed that the types of
intestinal parasites noted on a previous survey
could account forit.
Hematological Leukemia Survey
Differential counts showed no increase in immature leukocytes that would cause oneto suspect
leukemia in either the 1959 or 1960 survey. Alkaline