Activity in excess of 200,000 dfm/te* on sampling day occurred
at two stations in the United States following the Yankee burst
(Billings, Mont., and Salt Lake City, Utah) and was a result of
dry fallout at Salt Lake City and with rain at Billings. These
values exceed by an order of magnitude the maximum fallout revorted
at any of the Japanese stations and are larger than the maximm
values reported at many of the Pacific Islands much closer to the
Pacific Proving Ground.
(It should be noted that it is likely
that Kusaie, Ponape and Kwajalein received their maximum activity
following the Bravo burst, however, these stations did not start
gummed film observations until about two weeks after this burst and
the values given probably do not represent the maximum fallout for
wry
mq
rm
the Castle series. )
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