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|Title:||Concentrations of 207Bi and 210Pb-210Bi-210Po Disequilibrium in Fish|
|Publisher:||University of Hawai'i Press|
|Citation:||Noshkin VE, Wong KM, Eagle RJ, Jokela TA. 1984. Concentrations of 207Bi and 210Pb-210Bi-210Po Disequilibrium in Fish. Pac Sci 38(4): 350-355.|
|Abstract:||Radioactive 207Bi, produced during nuclear testing at the
Pacific Proving Grounds, concentrates in the muscle tissue and organs of goatfish
and certain pelagic lagoon fish from Bikini and Enewetak Atolls. It is reasonable
to expect that fish capable of accumulating 207Bi could also be efficient accumulators
of other bismuth isotopes-namely 210Bi, the daughter of naturally
occurring 210Pb. Therefore, 210Bi and consequently 210Po, the decay product of
210Bi, would be expected in notable excess over the precursor 210Pb in specific tissues.
To test this assumption, we compared concentrations of 210Pb, 210Bi, and
210POin muscle, liver , and bone separated from some reef species from the Marshall
Islands. Concentrations of 210Bi in muscle and liver were found to exceed
those of its precursor by factors of2 to 15. The excess 210Bi in some species, however
, is not from the environmental sources (either food or water) from which
207Bi is derived. The data suggest that the excess 210Bi may be translocated to
muscle and liver tissue following the decay of 210Pb in bone.
|Appears in Collections:||Pacific Science Volume 38, Number 4, 1984|
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