Me.
Turekian, Karl and Kulp, J. Laurence
STROMTIUM CONTENT UF HUMAN SONES.
Science ic,
Marked regional differences in the Sr content of
human bones were observed as a result of the
analyses of 277 human bones
from a world-wide
sanpling.
The % Sr/% Ca x 10°
ratio was determined
on bones ashed at 8000° for 12-24 hours.
This
ratio was not affected by bone type, age, or sex.
Bones from Brazil and Liberia had high average
ratios, Denmark, Italy and Japan, intermediate
average ratios, and Colo ne, Switzerland, and
Bonn low average ratios
(1.33, 1.25, 0. 89, 0.71,
0.70, 0.36, 0.35, and 0. 35 respectively). Analyses
of bones of 9 other regions were also reported.
75.
U. S. Department of Agriculture
RADIOACTIVE FALLOUT ON THE ARM.
po.2107.
Washington,
,
U. S. Government Printing
Office, 1957. 6p. bento.
76.
U.S. Federal Civil Defense Administration
PALLOUT DEBRIS DEPOSITION.
S000" U. S. Government Printing Office, 1957.
77.
Warren, Shields
ANTI-PERSONNEL EFFECTS OF NUCLEAR WEAPONS.
Confluence &, no. 2, 131-8 (1956).
78.
weiss, Herbert V. and Shipman, Ww. H.
BIOLOGICAL CONCENTRATION BY KILLER CLAIS OF COBALT=
60 FROM RADIOACTIVE FALLOUT. Science 125, 695 (1957).
In 2 specimer.s of Tridacna Gigas recovered frou the
stores of Rongelap Island 2 years after the March,
1954, nuclear aetonation, readily detectable anounts
Of both fe and y-radiztion were, presert. The
activity was attributable ta Co ®Y (I) to the extent
of 63 and 85% of the gross yeactivity.
a conpornent of fission products,
As it is vt
it is assuned that
it was ii.duged from an envircnnertal precursor
possibly Co27, by the neutron flux accompanying the
detor.ation.
It was not detected in samples collecteed one year after the detonation; this points to an
enormous cor.cer.treting capacity of Tridacna gigas.