Zinc-65 and Chromium-51 in Foods and People

Abstract

Some radioisotopes introduced into the Columbia River via effluent water from reactors at Hanford, Wash., are found in crops irrigated with this water and in sea food harvested near the mouth of the river. Measurements of zinc-65 and chromium-Si in foods and in individuals consuming these foods are reported and are compared with zinc-65 concentrations resulting from fallout.

Influence of the Physico-Chemical Forms of Radionuclides and Stable Trace Elements in Seawater in Relation to Uptake by the Marine Biosphere.

“…is widespread in the marine environment and has been detected in various organisms by many investigators (Robertson, 1968;Folsom, et al, 1963;McCauley, 1971;Nagata and Folsom, 1954;Osterberg, et al, 1964;Perkins, et al, 1960;Watson, et al, 1961;Wolfe, 1970;Young and Folsom, 1967 Zn by diatoms and Chelex-100 chelating resin occurred at different rates, and that equilibration between the zinc and the 65 Zn was slow relative to biological uptake (see Figure 3). The obvious explana-65 tion is that the zinc and Zn were present in the seawater culture medium in Zn from the crabs.…”

Historical review of personnel dosimetry development and its use in radiation protection programs at Hanford 1944 to the 1980s

“…The cooling water was t aken from and released back into the Columbia River. A study (Perkins et al . 1960) indicated that the principal routes of human intake of zinc -65 were from Columbi a River drinking wate r , fish, and seafood.…”

10th Annual Bio-Assay and Analytical Chemistry Meeting, October 8-9, 1964

“…T h e p a t t e r n of deposition d o e s indeed follow that ( 3 ) , M i n i m u m deposition o c c u r s at the p a r t i c l e s i z e upon which the D a t a of W i l s o n and L a M e r ( 4 ) a r e given i n F i g u r e 4.…”

“…-A mixture of concentrated n i t r i c , s u l f u r i c and perchloric acids was used i n the wet digestion of t i s s u e specimens, since t h i s medium has been successfully applied i n t h e d i s s o l u t i o n of other biological samples (3). media was normally complete within one hour using t h e q u a n t i t i e s of t i s s u e mentioned above.…”