25
TABLE 4.2 #1B
INSALATION
FACTORS TO CONVERT “INITIAL DAILY INTAKE (pCi/d)" TO
“WHOLE BODY" OR “TISSUE” DOSE (rem) FOR DIFFERENT PERIODS OF DAILY INTATE */
7y
Radionuclide
& period
CESIUM-137
C.E.D.E.>/
-
a
Red
marrow
Lungs
Bone
surfaces
Liver
initial year
10
E-*/
9.9
£E-6
ll
ES
9.4
E6
if
ES -
0-30 year
22
E-<4
2.0
E5
2.2
Ed
2.0
E-4
212.
E~4
initial year
7.7
E5
4.2
E-4
4.6
E-6
9.2
Ea
.L
E<6
0-30 year
1.6
§E-3
8.7
E-3
9.5
ES
1.9
E-2
{.
E45
1.5
E-l
2.3
E-l
2.3
E32
2.8
E-0
.
E-]
0-30 year
4.5
E0
6.9
E<O
6.9
E-l
8.4
E-l
5
El
30-70 year
6.0
E-0
9.2
EO
9.2
El
1.12
§E-2
2.9
E-l
30-70 year
STRONTIUN-90
X-70 year
PLUTONIUM-239.-240
& AMPRICIUM-241
initial year
®/ Tt is assumed that the daily diet remains constant, but that the radionuclides in it
decay spontaneously.
The table provides dose factors in rem/picccuries/day.
on NRPB (1987) which provides factors in Sv/Bq (= 3.7 x rem/picocurie), and
with ICRP recomendations (ICRP 1986, 1987). These factors allow for the
radionuclide absorbed from the gut, its distribution and residence time in
absorption and effectiveness of its radiation in the body, and its rate of
>/ Committed effective dose equivalent (whole-body dose). Other doses are
the body of a standard man, each weighted by the risk resulting from a wit
tissue as compared to the risk from a uit dose to the whole body.
c/ E45 signifies: x10°5.