fresh milk from the aret.
lhis is dy
rucioactivity taking tlsece in
too
depen
te collect, process and distribute
or
wnich shipe milk out
is presumably pooled with
ner milk,
me it
takes
wilk,
Jasringten
(Other dairies active in
ancerson Dairy,
“he Jecay in
- aunty
are
the
ic Las Vegas, vhere it
«ind tne Highland Dairy,
which has come in more recently, distributing uilk from
northern Utah.)
The chain, therefore, from nuclear explosion through
Fallout, pasture, cow and milk to chilcren has been completed
in many of these areas and for a consiierable number of children.
What biological effect would be expected from these exposures?
5)
\
The biolozical sisni ficance cf these levels
It is now well known that radionetive lodine presents
a special hazard to infants for the following reasons:
1. Milk is the largest human dietary source of
iodine 131 and children generally drink more milk
than adults.
2. For the same quantity of
LOIine
jan
~
hyroic
of
.
eaten, the cells of the
receive 10 to 15 tines the foce2ore
cells of an adult thyroi?t.
The i
is much smaller, generally wei: hi
+
tne food
infant
«
thyrctia
q
orams, whereas the adult
on
~
an
wo
given quech.
In the infant
20 @rans.
Ap
anne
Boao. .é
radiation i: spread over 3 mucr
ch
gram
receives
a
greater
ancaunt of
and ea
radiation.
HM
The infant! s thyroid usy be more onnsitive than
the adulttcs Lo cancer induction ty' 61.’ .ation.
De
Thyroid cancer was observei in chiliicn
li
single exposure to radiation of 150
after a