APPENDIX A
MAPS OF DAELY FALLOUT
Maps showing the daily fallout on the monitoring network from
February 28 to May 31, 1954, and the average daily fallout during
the month of June, 1954, are appended.
All values of radioactivity
are in d/m collected on a square foot of gummed film in a day,
extrapolated
were exposed
The burst: to
is indicated
to 100 days after the burst. In most cases, two films
simultaneously and the values for each are shown.
which the debris was assigned for extrapolation curposes
on each map.
(See sec. 2.6 with reference to burst
assignments after May 21.)
Lines.delineating the areas of significant fallout (over
100 a/m/ft*/day extrapolated tc 100 days after ourst}, labelled
with the event believed responsible for the fallout, are srown.
The lines are dashed in areas of greatest uncertainty.
The precinitation which fell during each sampling veriod is
shown in accordance with the code given on the mars.
reduced to its water equivalent.
~ 39 -
Snow has been