Record Display for the EPA National Library Catalog


Main Title Biological Half-Life of Tritium in Chickens and Eggs.
Author Mullen, A. L. ; Moghissi, A. A. ; Stanley, R. E. ; Lloyd, S. R. ; Fort., P. A. ;
CORP Author Environmental Monitoring and Support Lab., Las Vegas, Nev.
Year Published 1975
Report Number EPA/600/J-76/050;
Stock Number PB-266 820
Additional Subjects Tritium ; Radioactive isotopes ; Chickens ; Food chains ; Health physics ; Eggs ; Half life ; Radiation dosage ; Parenteral infusions ; Exposure ; Experimental data ; Reprints ; Environmental transport ; Biological half life ; Radioecology
Library Call Number Additional Info Location Last
NTIS  PB-266 820 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 5p
Previous studies of tritium transport in the environment suggest that although water is the main route for human intake, other routes should not be ignored. The importance of eggs as a step in the pathway for human intake of tritium was assessed by intravenously administering a single dose of tritiated water to 50 white Leghorn laying hens. Blood samples and eggs were collected from the hens for the next 17 days. The eggs were separated into the yolk and white portions and all samples were analyzed for both free water and organically bound tritium. Tritium in the blood decreased with a 4.60 plus or minus 0.26 day half-life. No significant differences were observed for the tritiated free water obtained from the white or yolk portion of the eggs. The peak activity in eggs occurred one day following administration and decreased with an average half-life of 3.65 plus or minus 0.26 days. Tritium incorporated into the organic components of egg white and yolk reached peak levels of activity at six and eight days respectively and then decreased with essentially the same half-life as the free water portion.