~ 34 -

4.

Scaevola leaves from Belle Island (Eniwetok Atoll)

contained a high amount of wi85 (67 to 70 per cent of total
activity).

In ion-exchange separations this isotope was

observed only in the anion fractions.

Only the 0.055 MEV

and 0.03 MEV gamma energy peaks of W185 were found

in a

precipitation separation specific for tungsten.

5.

In soil samples from Belle Island collected August 20,

1958, wi85 appeared to leach to a depth of eight to ten
inches, two and one-half times as fast as radioruthenium,
times the rate of radiozirconium,

four

and five times as fast as

radiocerium.

6.

The rate of removal of wi85 from Scaevola leaves by rain

and wind is not significantly different from the average of
the other radioisotopes.

7.

The level of wi85 on algae samples collected at Belle

Island on August 20,

1958,

was higher than that on land plants,

based on activity per unit weight.
8.

In a dogtooth tuna specimen taken from Eniwetok lagoon

on June 22,

1958, wis was found in the spleen and liver.

Other fish sampled failed to show the presence of this isotope.

Select target paragraph3