Sop) teeptt ae
Whole-body dose equivalent rate, mrem/y
60
(a)
—l—
—tt—-
50
—®—
—o—
.
—k—
—i—
40
—~—
0
20
40
Newborn
4-month old
9-month old
1.5-y old
4-yold
12-y old
18-y old
60
Whole-body dose equivalent rate, mrem/y
60
(b)
;
50F-
——™—
Newborn
—o—
1.5-y old
—tt———e—-
—*A—
—iY—
40}
——
10
0
Years after ingestion
20
#£=4-mcnth old
9-month old
»3=4-yold
12-y old
—-18-y old
30
Figure 3. The annual dose equivalent from ingestion of 137Cs beginning at different ages; (a) shows
lifetime dose equivalent rates and (b) shows an expanded view of(a) for the first 30 y of exposure.
9000142
:
1