; ands DRINKING WATER The drinking water pathway for the atolls visited in the Northern Marshall Islands survey has been evaluated in a separate publication. !8 This pathway contributes a very small portion of the total dose.>?! 9 The radionuclide concentration data used to evaluate the drinking water pathway are listed in Appendix A. Cistern water is preferred and most often used; however, well water is used when drought conditions exist. When well water is used, the suspended material is allowed to settle out prior to consumption. In addition to drinking water, the Marshallese consume considerable quantities of coffee and Kool-Aid (Malolo), for which they again primarily use cistern water. TERRESTRIAL FOODS Food Radionuclide Concentration The radionuclide concentrations directly measured in local foods for the atolls and islands and used in the dose assessment are listed in Appendix A. Because there were insufficient food products to directly determine the radionuclide concentrations in all locally grown foodsat all islands, we have predicted the concentrations in those foods for which we do not have direct data by multiplying the average island soil concentrations for either the 0- to 10-, 0- to 15-, 0- to 25-, or 0- to 40-cm depth for one island by the concentration ratios between food products and soil developed for the same profile at another island. Most of the data in the tables are from direct measurements of the food products. These measured and predicted radionuclide concentrations in foods are then used in conjunction with the assumed average diets and dose models to develop the dose assessment for various living patterns. Soil Radionuclide Concentration Radionuclide concentrations for the profiles 0 to 5, 0 to 10, 0 to 15, 0 to 25, 0 to 40, and 0 to 60 cm are calculated using equal weights for each 5-cm increment. The island average for each depth profile (i.e., 0 to 5 cm, 0 to 10 cm, etc.) was calculated by averaging the results for each profile taken on the island. The results are summarized in Appendix B. 16