Biological Disposition of Radioiodine—A Review

Iodine-131 Releases from Radioactive Lanthanum Processing at the X-10 Site in Oak Ridge, Tennessee (1944-1956)- An Assessment of Quantities released, Off-Site Radiation Doses, and Potential Excess Risks of Thyroid Cancer, Volume 1

“…In another case, 131 I from 1961 tests in the Soviet Union was measured near the New York City area. In this case, the concentration in eggs was substantially lower than the concentration in milk (Eisenbud and Wrenn, 1963). A parameter (F egg ) is defined as the ratio between the average concentration in eggs and the average concentration in milk for the same amount of deposition on pasture vegetation (Bq/kg egg per Bq/L milk or L milk kg egg -1 ).…”

Sources of Radioactive Pollution

“…Interactions of cosmic rays with atmospheric gases produce a number of radioactive species of which the most important are tritium ( 3 H), 14 C, and 7 Be. Of lesser importance are 10 Be, 22 Na, 32 P, 33 P, 35 S, and 39 C1.…”

“…Since 1954, the atmospheric content of 14 C has increased, owing to the production of this isotope by neutrons produced in thermonuclear explosions. The concentration of atmospheric 14 C gradually increased to about 90% above normal by 1963 (9).…”

Measurements of Deposition Velocity of Gaseous Elemental Iodine on Water

“…Although significant is not defined, this pathway should be evaluated because of the potential for direct exposure to man. Thus far this pathway has been virtually ignored, probably because the large volumes of water tend to significantly dilute radioiodine deposited on the water surface (EISENBUD and WRENN, 1963).…”