nih AOS ASL wl 3.< Dallelle Pacific Northy.est Laboratories P.O. Box 999 Richland, Washington L.S.A. 99352 Telephone (509 Telex 15-2874 February 28, 1983 Dr. Edward T. Lessard Brookhaven National Laboratory Associated Universities, Inc. Upton, Long Island, NY 11973 Dear Ed: Thank you for sending me copies of your Marshall Islands trip reports. The data are very interesting. I had seen the figure comparing Cs-137 levels at Rongelap, Utirik, Enewetak and Bikini when we were at Majuro in December. Communicating and explaining the body burden data to the Marshallese will be a challenge for you. Sore of the questions they asked us at Majuro will give you an indication of whet you can expect. I'l] send you a copy of the transcript of the tapes made at our December session when it is completed. , The abstract of your thyroid absorbed dose paper planned for presentation in July 1983 was omitted from yourletter. I would be quite interested in having a copy. I continue to advise those dealing with risk estimates for thyroid to "wait for the Brookhaven report." With-best regards, Hl W. J. Bair, Ph.D. Manager Environment, Health and Safety Research Program WJB: 1m