79
probably associated with the fact that this, of all the tissues
examined,
is more nearly representative of the blood,
in which
zine is associated with the carbonic anhydrase of the erythrocytes and also to a protein carrier to which it is loosely
bound.
The high specific activity of zinc-65 in bone
coupled with its low rate of turnover
theory of Chaberek and Martell
adsorbed to,
(Table 39),
(Table 10), reinforces the
(1959) that heavy metal ions
or exchanged for the major cations of,
the surface
of living bone become trapped by overlayering growth and are
thus
unavailable for further exchange.
To illustrate the differences between the mean levels of
zine-65 shown in Tables 4 and 5
Rongelap and Kabelle Islands,
for goatfish samples from
the descriptive statistics from
the data were plotted graphically in Fig.
6.
Inspection of the
figure suggests that the mean specific activities of the Kabelle
samples are different from the Rongelap samples.
significance of these differences,
To test the
independent groups "t" tests
(Chapman, 1958) were conducted to compare the mean specific
activities of eye and liver tissues between the Kabelle and
Rongelap samples,
samples.
and between eye and liver tissues for both
The tests indicated that the differences “between
areas" were probably significant, while the differences
"betwee!