EDB Item 49 PRIMARY REPORT NUMBER TITLE ENGLISH PERSONAL AUTHOR CORPORATE TEXT PUB. DATE (YYMMDD) LIMITATION CODE ABSTRACT oat Order number 940330-160606-96 -001-001 page 36 set 11 with 111 of 111 items UCRL--53917 Estimates of the radiological dose from ingestion of {sup 137}Cs and {sup 90}Sr to infants, children, adults in the Marshall Islands Robison, W.L.;Phillips, W.A. Lawrence Livermore National Lab., CA (USA) 890217 and UNL In this report, we examine whether the radiological dose equivalent due to the intake of {sup 137}Cs and {sup 90}Sr at a contaminated atoll in the Marshall Islands would be greater when intake begins as an adult than when intake begins as an infant or child. We found that generally {sup 137}Cs contributes 97 to 98% of the dose and {sup 90}Sr contributes only 2 to 3 %. We also found that the integral 30-, 50-, and 70-y effective dose equivalent estimated for intake beginning as adults is greater than that for intake beginning at any other age. There are two factors that cause the adult estimated dose to be greater than the dose to infants and children. The major factor is the consistently higher intake of local foods, and consequently higher intake of {sup 137}Cs, for adults. The second is a combination of changing body weights, fractional deposits, and biological half-life for {sup 137}Cs with age, and the reduced concentration of {sup 137}Cs in food with time. Consequently, the estimated effective integral dose equivalents for adults due to ingestion of {sup 137}Cs KEYWORDS and {sup 90}Sr can be used as a conservative estimate or intake beginning in infancy and childhood. 95 refs., 4 figs., 10 tabs. MARSHALL ISLANDS/human populations ;INFANTS/dose equivalents ;CHILDREN/dose equivalents ;ADULTS/dose equivalents ;CESIUM 137;STRONTIUM 90; INFANTS; CHILDREN; ADULTS; INGESTION; BIOLOGICAL EFFECTS;FOOD CHAINS EDB Item 50 ANALYTIC TITLE ENGLISH Evolution of reef and atoll margin carbonates, upper Eocene through lower Miocene, Enewetak, Marshall Islands AUTHOR ANALYTIC Saller, A.H.;Schlanger, S.O. PAGE RANGE PUB. DATE (YYMMDD) ABSTRACT 50034 10 243 ~ 880200 Two wells drilled along the margin of Enewetak Atoll penetrated approximately 1000 m of upper Eocene, Oligocene, and lower Miocene carbonates. Strontium isotope stratigraphy indicates relatively continuous