- 49 -
;
_-
-~an accident wherein surfaces are contaminated with hot
particles, it is necessary to have a standard to apply to
-
:
Gecontamination measures.
The number of particles that can be resuspended from
surfaces has been the subject of a number of experiments.
These experiments have usually resulted in the determination
of a resuspension factor (RF).
The RF is defined by:
-1l) = concentration in air (uCi/m3)
RF (n™")
concentration on surface (uCi/m-)
.
R. L. Kathren has reviewed the data obtained on RF
values, 83
He indicates that,
“reported [RF] values for plutonium
and its compounds range over 11 orders of magnitude.“
This
11 erders corresponds to values between ic71l to 10-11 mol,
Kathren indicates that,
"an RF of 1074 m7i, although
conservative is appropriate. 84
Langham indicates that a
~——_—.
member of the Danish scientific team used an RF=107? ml
during the Thule deliberation.
85
We weuld recommend that
83/ Kathren, R.L., "Towards interim accertable suriace contamination levels for environmental Pu02," BNWL-SA-1510, Battelle
Northwest Laboratory, Richland, Washington, April 1968, pr. 3-4.
84/
Ibid, p. 4.
85/
Langham, Wright H., Op. cit., p. 5.
The Thule
ule Delinecra-
‘tions refer to the @eliberations following the accidental
crash of a B-52 bomber carrying nuclear wearons ncar Thuis
Air Force Base in Greenland.
The hich emplosives in the
weapons detonated and dispersed the plutsniun.