PART IIIE TERRESTRIAL AND MARINE PROGRAM The purpose of this part of the radiological survey program is to document and evaluate in the form of radiological dose assessments the probable consequences of living on the 13 atolls and islands being studied. The goals are to collect appropriate and sufficient representative samples and to analyze and obtain quality data from which these assessments can be accurately predicted. TERRESTRIAL PROGRAM To provide a meaningful dose assessment at the conclusion of the overall survey program, soil and vegetation sampling will ‘be required. These samples will be analyzed for 9050 one of the major contributors to the potential dose, 13708, and the transuranics (the transuranics primarily include 238, 239-240, 10, 241). ). Soil sampling is required to determine the depth distribution of gamma emitters to help quantify and verify the aerial radiological survey data. It has been found that 90 percent of the total predicted doses to populations at Bikini and Enewetak Atolls are due to 906. and 13706 ingested via the terrestrial foodchains. To properly assess this pathway, soil profile and surface soil samples and vegetation samples must be collected to determine the potential radionuclide uptake in subsistence crops. The transuranics are determined to evaluate the long- term potential effects from the gradual buildup of these isotopes. The terrestrial program will include collection of the following types of samples: 1. Surface soils. 2. Soil profiles. 3. ‘Subsistence crops and associat2d soil profiles (i.e. coconut, Pandanus fruit, breadfruit, papaya, squash, etc.). available on many of the atolls. These crops may not be However, wherever they are available, it is of primary importance to sample the edible products and determine the associated soil profiles. 9002694 LIT=11