Ct
B
.
- 38 -
Manhattan
r
Project Norkers
Another study of human respiratory exvosure to plutonium
(D
-
hates to 25 younas men exsosed to plutonium during the
Manhattan Project.
66
The latest examination of this grous’
found then to be free of lung cancer although the report.
states,
"The bronchial cells of several subjects showed
moderate to marxec metaplastic changes, but the Signific
of these chances is not clear."
cancer.
etecting incislent or actual lung
fh
a possible indicator for
Such metaplastic chances
In one case the revort indicates
Surorisad «2 find ome lung ca
mon-exvoses sudiects.
fara conductes with
.
An
averace
During
these results:
MDA
for
a 2000-saz
counting
time
is
Boclt
li if one usez tne 953 confidence level.??
For tn2 33% ccntidence leval ana 2 Similar counting
time, 222 comcaraple value is about 3.5 rci.
:
:
1
a
‘
.
he an
DM
‘
ie
15/
Hamclanann,
O.N., 2b 21,,
“Mannaloan
srojyecs
Plutani
favkears; A Tweatv-seven Y2ar Follow-Ups Study of Selectad