~ 29 -
PRIVACY ACT MATERIAL REMOVED
, et alov. NUMEC.
settled out-of-court.
This Suit was eventually
A discussion of the evidence in this
case by one of the authors is presented in the Appendix B
of this report.
These two cases, drawn from the relatively small number
of individuals so contaminated, strongly suggest that Pu-2z39
particles offer a unigqzue carcinogenic risk.
They indicate
that a single particle is capable of delivering an intense
radiation dose to a critical volume of tissue and that this
disruptively irradiated tissue, like an atrophied hair follicle,
has a high probability
(maybe as high as
cancerous.
C..
1/1000)
of becoming
“
Related Lune Exveriments
4
The skin experiments with animals are remarkable in that
a highly disruptive dose of radiation
‘repairable mammalian tissue produced
o
to a small portion zt
frequent carcinogenesis.
.
?
;
.
The chance of producing one cancer per animal is essentially
sunity.
It is reasonable to expvect that a comparable
development could occur in lung tissue.
radioactive substances have been used
in mice and rats
+
o
4 8
§,
While a number of
to induce
lung cancers
1t is difficult to derive any characterizaa
.
.
.
.
tion of carcinogenesis from these experiments.
ye
48/
Cember, H.,
Experimental
"Radiogenic lung cancer,"
Tumor
Rescarch,
Hafner Publishing Company,
me
Inc., Vol.
.
'
Os
:
tomers ib oS OTSree hr
fa
ve’
ray on nt!me
She
arr
Homburqer,
Progress
ed.
4, 1964,
in
New York,
pp. 251-303.
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