82
N-8
to Rongelap
and
Give the details
of the December 1987 visit
Include
the samples
taken,
the detailed
analytical
Ailingnae.
results,
(which
might be used elsewhere
in the Report,
and the
persons
who attended
or who did the work,
including
the analyses.
This Note can thereafter
be cited
when dealing
with vegetation
and
soil.
N-9
The external
gamma-ray
exposures
of Table
4.1 #l affect
all
of
the tissues
of the body.
In addition,
beta
rays
(cesium-137
and
strontium-90)
emanate
from soil,
but have only
a limited
range
in
they might
affect
the
air and very poor penetration
into
the body;
body’s
surface
in those
regions
which are closest
to or are actually
touching
the ground.
Shoes and clothing
provide
complete
or almost
complete
protection.
External
beta-ray
dose is considered
to be unimportant
on the
basis
of the following.
For gamma rays,
the Rongelap
Island/Eneu
Island
external-dose
ratio
is 1.6
(Table
).
The beta-ray
dose
ratio
at .007 mm depth
(basal
cell
layer,
skin)
should
be
approximately
the same.
by extrapolation
from the
Therefore,
determinations
at Eneu (Singleton
et al)
the Rongelap
basal-cell
dose would be 46 mrem/y, and at 1 cm depth practically
zero
(ICRP
51, Table
26).
Since
the radiation
protection
guide
for
skin is 5
(NCRP 1987b),
the skin dose is a trivial
one.
rem/y
Query:
I/here does
the citation
go?