DR. JOSEPH WAGONER, S.D.Hyg. December 14, Loma Linda University School of Health submitted to DOI a shall Islandshealth care plan. 1980 Mar- While that plan does address the general health care needs of the people of the Marshall Islands, it does not positively address the needs of those people with regard to illnesses which are kiuown to be associated with radiation. As such, the plan for the people of the Marshall Islands should be enlarged to include health care activities specifically directed toward carcinogenic, genetic and reproductive effects. There can be little doubt that under a wide variety of circun- stances, ionizing radiation is carcinogenic and leukemogenic in humans. This conclusion is attested to by numerous epidemiologic studies conducted among human populations experiencing a diversity of exposure to radiation. Epidemiologic studies of uranium minors exposed to alpha and gamma radiation have demonstrated a large excess of bronchogenic cancer. In addition, these studies have demonstrated a preponderance of a specific : stologic type of cancer, i.e., small cell undifferentiated carcinoma, when compared to the general population. Epidemiologic studies of the survivors of the atomic-bomb explosions at Hiroshima and Nagasaki provide reliable data on the carcinogenic effects of whole body exposure to gamma rays and neutrons. Among those individuals, an excess of lung, thyroid and breast cancer, as well as leukemia, has been demonstrated. This excess of leukemia was shown to be predominantly of the myelogenous and granulocytic type. Conclu-