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nalhis
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4
Fig. 4.
The geographical variability
of the gamma-ray exposure rates
(uR/h)} measured 1 m above the sround
on Bikini Island. The contributicen
due
to
cosmic
stracted.
radiation has been
The contours were
sub-
drawn on
the basis of the cata shown in the
Appendix. The straight lines dravn
across
the
island cenote baundaries
of land parcels (watos) owned by the
families whose names appear in the
upper parc of the photograph.
-9-