’ CHAPTER 7
SUMMARY AND RECCMMENDATIONS —
4
7.1
SUMMARY OF RAMTOTOOTCAL ANAINSIS
‘The radiological data provided by Operation IVY reveals the
following information:
a. The direction and speed of transport of the IVY
' atomic clouds appears to be reasonably typical of
. conditions during November.
mame
—
;
-
-
b.
The greatest radioactivity measured on a single
gummed paper from the monitoring network was 3.6 x
10° d/m at Iwo Jima five to.six days after the MIKE
burst. The highest depogition in the Hawaiian
Islands was about 6 x 10°
d/m and the highest
deposition in the United States and Canada was
4
q
3
-
,
OO
,
|
1x10
d/m.
While there have,;been higher values
of radioactivity than 3.6 x 10° d/m reported from
continental tests they have always occurred within
two days after the explosion.
--. @ There appears to be little correlation between
the fallout collected on gummed paper and the air
concentration msasured by the air filters. The
- latter measurements do not lend themselves to a
satisfactory meteorological analysis.
Different but reasonable conditions may well bring about
greater surface radioactivity than was observed during this
operation. Ths following estimates of potential radioactivity
. are based on possible msteorological conditions and on the
assumption that the amount of radioactive debris available for
surface deposition is directly proportional to the yield.
-5% -
_
.
a
co
A
dinisstieacs aia tintate abadl
7.2 ° SUMMARY OF POTENTTAL MAXIMA FALLOUT ESTIMATES