Dr. Gustafson reported that the radiological resurvey of Bikini Atoll consisted of taking numerous radiation exposure measurements, and collecting representative samples of the prominent plant and animal species (including fish and birds). Particular efforts were made to sample those items likely to be consumed as food by the returning Bikinians. were used to measure radiation dose rate. Several kinds of devices Confirmation of dose rate by more than one instrument increased reliability, and the field y-ray spectrometry provided detailed information on the radionuclide composition of the contamination. The island of Bikini was surveyed most extensively. The former village was located here, and remains the most desirable location for permanent housing. The beach area, village site, and selected transects across the middle and both ends of the island were surveyed for radiation levels. The dose rate at or near the beaches was lowest due to leaching and wash off of radioactivity. (~~10pR/hour). Radiation levels were comparable to those found in the U. S. Higher levels (roughly twice to three times beach values) were present in the interior (densely overgrown) regions with some hot spots. A sizable area was cleared of vegetation, and dose rates remained essentially constant. | vegetation. Other measurements indicated radioactivity to be present in the Hence one may conclude that as the shielding effect of plant material is removed, the dose from ground deposition compensates for the removal of radioactivity in plant material. Under habitation, the islands would be cleared of underbrush; hence, the plant source will be removed. Plowing under, or otherwise burying the top layers (inch or so) of soil