oT agencies, dated May 17, 1965, states: : % "Internal exposure from cesium-137 to be taken in through the diet in the_conterminous United States during the next 30 years has been‘ estimated to be about 0.01 rad. In Alaska, although the amount of ‘fallout deposited per unit area is about one-fifth as much as that deposited in the 30° -400 latitude band, a combination of ecological conditions and specific dietary habits of some eskimos and Indians causes higher cesium body burdens than are found in the conterminous United States. Average body burdens of cesium-137 in these inhabitants were about three times as high in 1964 as they were in 1962. The estimated annual whole body doses to these individuals ranged from about one-quarter to one-half of the numerical value of the RPG for individuals in the general population. On the basis of this information on stratospheric fallout the Council concluded that the health risk from radioactivity in food over the next several years would be too small to justify protective actions to limit the intake of radionuclides either by diet modifications or by altering the normal distribution and use of food, particularly milk and dairy products.” _ Question 1lE 7 7 4 Because relatively few Eskimos marry non-Eskimos, their genetic pool is small; genetic defects are slow to dilute. hazard from contamination? Will that tend to increase the _ Answer l1E The fact that Eskimos predominantly marry Eskimos rather than non-Eskimos indicates a strong and not unusual racial restriction with regard to marriage _ pattern, but this does not imply a small genetic pool. The overall Eskimo population in Alaska, with numbers estimated at about 27,000, is, under natural conditions, organized into relatively small village units consisting typically of from 10 to 25 families each. Acculturation has, in many in- stances, led to sizable increases in village populations. . There is a strong tendency for marriages to involve individuals within the same village and for this reason there is a degree of consanguinity and thus of inbreeding. ever, there are indications from studies of inheritance and of language How-