surrounding tissue (roughly 10 rem/yr).
C
Werpons Test Tallout
Another source of human contamination that is suggested
as being pertinent to this problem is the plutonium in the
fallout from nuclear weapon tests.
weapon tests
is
incorporated in or deposited on particles
that contain other materials and,
workers,
The plutonium from
like that for the Manhattan
the specific activity in these particles is much
smaller than that in hot particles.
VII
Exposure Standards for Hot Particles
Thus the existing bidlogical evidence strongly suggests
that an insoluble particle of Pu-239 deposited in deep
respiratory tissue represents a risk of cancer induction
between 1/1000 and 1/10,000.
Prudent public health practices
should assess the risk associated with environmental plu,
tonium and establish exposure guidelinds on the basis of
these probabilities.
The existing standards for uniform radiation exposure
of the whole body or lung can be used as the basis for
establishing particle exposure standards by equating the
risk of cancer induction between the two tyves of exposure
(uniform vs. grossly non-uniform).
The most recent
assessment of the risk associated with uniform irradiation of
a
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