compare thi gs with what is hapnening to tho Colunbia River salmon

-

as a whole,

Those Garo: bars reprascut how the salmon population
has declinod from the san2 normal years,

Yo see that with the

possible excoption of 1933, we find that the decline in the
Rinost saimon in th2 Colweoia Rivor has actually boen more
severe than those which are spawninsg in our area,
So, 12 all of these assimotions ara right, we cdo not
think tho salmon have been hurt.
Now, in cleosiuns, how much coos this mean in terns of
radioactive materials which these fish ars Getting?

wet,

plotted sone colored pictures

Ve kaya

here which show 100 percent of

activity during particular tines of the year and tissues which)
are radionactive relatively speaking.
Statioa inuediately polow the

22 we go back to this

reactors, wnere wa find the

‘hignest concentration of radionctive materials in the organisms,
and if we pick the late summer period when

tne radioactivity is

greatest and we pick a small fish which is more radioactive

than the adult form of the ssecics and compute the dese of
radiation waich this particular small fish gets, and this is
the worst condition that wa can visualize for these fish in
q,

tre river to complete the desave rate, and this comes out to
about .1 of a rad per day,

This .1 rad per day you can probably

compare -- to put this in terms of a week -- .7 rad per wees
Which compares with the human permissible linit which is, I

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