To conserve space, daily fallout maps for the month of Jue
are not shown.
Rather, a map showing the average daily fallout
for the month is given, together with the number of days for
which data was available at each station. Again, the extrapola-
tion is based on Nectar, and activity is shown at 100 days after
burst. It is also likely that the major portion of the fallout
in June originated from Yankee and al] values should be increased
by about 25% to give values at 100 days after Yankee.
Although the discussion of the transport of debris in the
atmosphere has been confined to essentially horizontal trajectories,
the actusl paths of individual radioactive particles are complex,
three-dimensionsl phenomena, influenced by the fall velocities of
the particles, atmospheric turbulence, rain scavenging and
orographic effects.
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