Bruce Wacholz -3- July 23, 1979 Progress to Date The focus of the MIRSP was on environmental monitoring from the inception of the program in 1974 until 1977. In the spring of 1975 the Brookhaven field survey team performed an extensive external radiation survey of Bikini Island which laid the ground work for a "high resolution" survey by LLL, EPA, University of Washington and BNL in July 1975. The purpose of this latter survey was to determine acceptable locations for a proposed second round of housing construction at Bikini by DOI/TT. In the fall 1975 we participated as collaborators in the University of Washington, LRE's Pacific Basin Study to establish ambient background levels for external radiation and terrestrial and marine biota in Micronesia. In 1976 we continued our environmental monitoring efforts at Utirik, Rongelap, and Bikini and began to assume responsibility for urine bioassay for Marshallese medical subjects. This had previously been handled by BNL Medical and HASL. The emphasis of our program over the past two years has been on personnel monitoring; the most significant accomplishment being the demonstration of rapidly increasing 137¢g body burdens among the Bikinians. Follow-up personnel monitoring for relocated Bikini residents has dominated our program activities thus far in 1979. The following list of publications will serve to illustrate our program activities to date: "Marshall Islands Radiological Follow-up", BNL 20767, Proceedings of the Ninth Midyear Topical Symposium of the Health Physics Society (1976). “Radiological Analyses of Marshall Islands Environmental Samples: BNL 50796 (1977). 1974-1976", "External Radiation Survey and Dose Predictions for Rongelap, Utirik, Rongerik, Ailuk and Wotje Atolls", BNL 50797 (1977). "Dosimetric Results for the Bikini Population", to be published in Health Physics (1979). “Whole Body Counting Results from 1974 to 1978 at Bikini Atoll", to be published in Health Physics (1979). “Dietary Radioactivity Intake from Bioassay Data: A Model Applies to 13765 Intake by Bikini Residents" co-authored with R. Miltenberger, et al., to be published in Health Physics (1979).