5
ian
14
lg
ang
fee
a3
5
8
\
wn
e 6
“b
:
.
*
a
.
i
“1g
"
7
|
r
2
ol eee
4
'
rQ
4
is
ot
20
.
:
- -Q
25
ing
&41B
LUG -.-4
_
mg CREATINING
Figure $7 Urinary BAIB excretion taig-f-aniiao-oe-buby ric aod per mig
creatinine) versus body loud of Cs * (uy, Rongelap tnbabiiants, 1959
U.6; unexposed, 2.10 HOOE. A scatter plot of
Cis' ¢ levels and BAIB fevefs shows no correlation
(Fiyvure +7), and neether dues a similar plot between Zn" levels and BAEB levels. The mean
BAIB excretion level for 18 Micronesians, who
were on Utirtk at the time of the atomic explosion
and therefore not exposed to signilicant radiation,
was 222 20.05, which is extremely close co the
mean value for the Rongelapese. Among the Uurik people 83') were high excretors, whichis nol
signihicantty different trom the Rongetap group
percentage. A number of complete families are in-
LyeteemRongela
.
by exagetion. I
eS
anefign” bodys
due to
cluded in the Rongelap sample (ie... father,
mother and at least one childs, of these the high-
excretor by high-exeretor matings are the only
ones providing significant geneuc information.
There were Li such matings with a total of31 off-
spring (29 high excretors and 2 low excretors). One
of the low excretor offspring was illegitimate, as
determined by blood group data, but the other re-
mains as an unexplained exception to gencuc
hy pothesis.
Rubini et al. * fave recently demonstrated that
BATB excretion can bea sensitive indicator of
radiation exposure, Vhe mechanism imvalved Is
probably the same as that underiving the cliect of
nitrogen mustard on BAEB excretion. © Such
avents markedly mcrease DNA bitakdesw in: the
thymine thus released is cllectivedy comer tedk bo
Pa
SORES
SIPC a TOUtHeMTAsiatic
origin, af Ghisas tree, a high BAPEB level can be
precdieted for the populations of that region.
Studies of sante Asiatic popiulauons have viven
BEST AVAILABLE COPY