Acknowledgements The authors would like to take this opportunity to express their sincere thanks co the Department of Energy for sponsoring this study as part of tne Northern Marshall Islands Radiological Survey. There are numerous people in the Marshall Islands who have assisted us in providing the necessary information and making our stay in their homes a very happy experience. Their cooperation is gratefully acknowledged. To the following coileagues who, in spite of their busy schedule, took time to review the report and offered their valuable comments, a sincere note of thanks. The quality of the report has definitely been enhanced through their suggestions: J. Baum, A. Hull, E. Lessard, C. Meinhold, and R. Miltenberger. This report was typed by members of “he Word Processing group. taking effort is commended and recognize... | | | | | -~iv- Their pains-