Publication Date: 3 Mar 1976 p 37 Report Number(s): UCRL-51879 (Rev.1) Contract Number (DOE): W-7405-ENG-48 Document Type: Report Language: English Journal Announcement: EDB7608 Availability: Dep. NTIS $4.00. Subfile: ERA (Energy Research Abstracts); (Technical Information Center). INS (US Atomindex input); Country of Origin: United States TIC é Country of Publication: United States Abstract: To evaluate the potential radiation doses that may be received by the returning Bikinians, we surveyed the residual radioactivity on Bikini and Eneu Islands in June of 1975. An integral part of the survey included measurements of gamma-ray exposure rates which are used to estimate external gamma-ray doses. The survey showed that on Bikini Island the rates are highly variable: values near the shores are generally of the order of 10 to 20 ..mu..R/h, while those within the interior average about 40 ..mu..R/h with a range of roughly 30 to 100 .mu..R/h. Eneu Island, however, is characterized by more or less uniformly distributed gamma radiation levels of less than 10 ..mu..R/h over the entire island. These data, in conjunction with population statistics and expected life styles, allowed us to estimate the potential external gamma-ray doses associated with proposed housing locations along the lagoon road and within the interior portions of Bikini Island as well as along the lagoon side of Eneu Island. As expected, living on Eneu Island results in the lowest doses: 0.12 rem during the first year and 2.9 rem during 30 years. The highest values, 0.28 rem during the first year and 5.9 rem over 30 years, may potentially be received by inhabitants living within the interior of Bikini Island. Other options under consideration produce intermediate values.; Major Descriptors: *BIKINI -- HUMAN POPULATIONS; *HUMAN POPULATIONS -RADIATION DOSES Descriptors: BIOLOGICAL RADIATION EFFECTS; DATA; DOSIMETRY; GAMMA RADIATION ; NUCLEAR EXPLOSIONS Broader Terms: BIOLOGICAL EFFECTS; DOSES; ELECTROMAGNETIC RADIATION; EXPLOSIONS; INFORMATION; IONIZING RADIATIONS; ISLANDS; MARSHALL ISLANDS 7 POPULATIONS; RADIATION EFFECTS; RADIATIONS Subject Categories: 560151* -- Radiation Effects on Animals -- Man 510300 -- Environment, Terrestrial -- Radioactive Materials Monitoring & Transport 520300 -- (-1989) -- Environment, Aquatic -- Radioactive Materials Monitoring & Transport -- (1989) INIS Subject Categories: B31 -- Land B32 -- Water 10/5/993 00123993 C15* -- Effects of External Radiation on Man Ld (Item 693 from file: 103) BRA-01-021130; EDB-76-061437 9004087 Title: High genetic variability in a population of Tridacna maxima from the Great Barrier Reef Author(s): Campbell, C.A.; Valentine, J.W.; Ayala, F.J. Affiliation: Univ. of California, Davis Source: Mar. Biol. (Germany, Federal Republic of) v 33:4. Coden: MBIOA Publication Date: 19 Dec 1975 p 341-345 Document Type: Journal Article Language: English Journal Announcement: EDB7608 Subfile: ERA (Energy Research Abstracts); TIC (Technical Information Center). Country of Origin: United States Abstract: A population of the bivalve mollusk, Tridacna maxima (Roeding), from Heron Island, (Great Barrier Reef), Australia, was studied by gel electrophoresis, and proved to be highly variable genetically, with an average heterozygosity of about 22 percent. This compares closely with