AS
secn
a
from Table
IV,
using Geesaman's
lunj model,
a
~
particle with an alpha activity between 0.02 pCi and 0.14
pCi
is required to give a dose of 1000 rem/yr to irradiated lung
tissue. For purposes of establishing a maximum permissible
lung particle burden we will use 0.07 pCi from long halflived
(greater than one year)
isotopes as the limiting
alpha activity to qualify as a hot particle.
Thus, throughout
the remainder of this report, hot particle will imply a particle
with at least this limiting alpha activity which is insoluble
in lung tissue.
A
|
Exposures at Rocky Flats
The AEC has a plutonium facility associated with its
a
nuclear wearons vorogram at Rocky Flats, Colorado.
This
facility is operated under contract to the AEC by the Dow
Chemical Company.
The employees, the environment and undoubtedly
the surrceunaing ponslaticn have been contaminated with pliatonium
oo
;
;
particles as a result of the operation of this plant.
60-62
,
.
It is, therefore, pertinent here to examine the information
60/
Mann,
J.R.
and A.R.
Kirchnev, Op.
cit.
61/
Poet, S.E. and E.A. Martell, "Plutonium-239 and
Americium-241 in the Denver Area," Health Physics, Vol.
1972, pp. 537-549.
23,
62/
Richmond, Chet, Transcript of Plutonium Information
Meeting of the Advisory Committee on Reactor Safeguards,
Los Alamos, N. Mex., 5 January 1974, pp. 319-320.
“ eek Tam
.
:
apa ys
* ere
aee
ea
Bo2
te
Se
PAL
mt
BB EN
PPV
Uy oe eet
t
meat
as
bet
meen"
=
my
,
as
OP, eRe. “ ie
wetx Sa
~yaa me Tek ee Tt
.
.
oy
SMR
2,
et
pe
7 /
.
, ‘
‘
4