in bone - the tone marrow
calculated
alculat
inn the
the original
original recor
rerort (NVO
MVO-140).
we are following the
.
of Spiers used b
r
mo
ie
In ederti
t nz this approach,
recommendations of the ICRP (ICRP-11)
CEAR (22).
ga
The following text considers the informaticn availatie for estimeatin
the doses to the fetvu “co » the newborn,
and children relative to adults, and
also the dietary changes which are assumed Tor children.
2.
Dose tr Fetus
The Sr/Ca ratio in
the Sr/C2
placental barrier and
are.
In fact, the ciserved
+ ae
(roi 7’Sr/- Os)
(OR =
(iol
vars
=
the
Ve]
Sr/Ca ratio of the Petus
the
methers’? milk.
There is considerable evidence tc show that the CR milk/diet for
.
.
ae
7 33D
human breast milk is in the ranse of 0.1 to C.16.°°?
.
.
The sare chserved
23 exists
:
nae
4
>
ayie diet.
3
ratio
for
the
fetus
end: newborn relative to the adult
i,¢
This ratio has been observed directly and can also be caiculeted from
data whi
indicate
1.4
that the averase CR tcoay,/ciet Tor adults is 0.25;7°7
wnen this is combined with a further discriminaticn of approximately a
factor of 2 across the vlacental or marrary membrane, the range of values
Ve
-
oe
ews
of O.1 to O.1o for milk or fetus is obtained.
} 99
TS