tee age pre
LG2
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wihinSlateeae aaa
He
238py component value {s lord and #39.240py 4g 104 or
3 x 107°?
What it all reduces to is that we don't really know anything
» eacsusbomsetacs
g)
more about the marine pathway than we do the terrestrial cr,
for that matter, the {inhalation one.
{
of
ottREetee
If there ay be a fu problem at; Bikini with surface sof] concentrations
10 pCi/g (page 11), how caniwe consider settlement at Enewatak
10)
The uncertainties of the inhalation dose calculations have already
pretty well been identified:
a)
%
“tadt aso
with levels of 10-40 pCi/g?
|
How realistic is a mass loading of 100 g/m, especially tf used
b)
It seoms extremely contervative to assume that ALL of the rc3uspended
material is of respirable sfee, or to assume that the AMAD is
|
ERB
.
0.5 ym,
ro
as a yearly average?
Ae wet
c)
Is it realistic to assume a) Pun ratio identical to that in soil
for all respirable particles?
It seems to me that at least some
of the mass loading would be due to particles from ocean/lagoon
spray which probably have l}ttle or no Pu content,
Can one assume that inhaled'material {s high-fired oxide?
Other comments:
1)
|
It may be misleading or nisintetpreted to retain tables for average
soi] concentrations up to 400 pCi/gm.
Even 40 pCi/gm probably 1s .
unreasonably high as an {sland fverage.
The use of average soi) concentrations ts a delicate one.
are NOT used, presumably ALL is}on areas must be measured,
|
If averages
If island
SAT re ae
d)
SR A ae star ote
9)