$- 1173 April 1975 Preliminary survey of Bikinij and FEmet Islands condocted See NVO-206-E’ and BNL S196 joints br University of Washington ané Brookhaven Xational Laboratory for ERDs. Screening surver of erter- mal radiation letels and collection of gore soi] and vegetation aampiest in preparation for a major survey later this rear. June 1075: A major fine grid surrer of Bikini and Eneu Island externa! radiation levels was conducted br Lawrence Litermore Laborstorr for ERDA with participation br aecientists from EPA. University of Wasb- ington. Brookbatren National Laboratory. and ERD.A. Also mamples of aoil. plants. animals. and cistern and ground water Were . April 1876: A surver of external radiation jievele on Nam Island. the 8d Exposure rates on Bikini Island hbigbls variable Enev Island dos+ rates lower thar Bikini. e¢ister: Water on lotb islands is acceptatle for drinking Some wel! water acble. other wells apscceptable for drinking. See UCRL-$1871. Bi676 Bev. 1, 51918 Pr. 3. $2176. $3876 Part 2 Si€te Part 8, 53*7H Pr. §, NV O-266-82 ‘and BNL SOtHG To be publisbed. largesi island at Bikini Atol!. eovdocted br Erookbatep Nationa] Lab oratory for ERDA. September 197¢. Conduct of a joint gurves of 5 Atolls including Bikini bs Universits of Washington To be published. and Brookbaver Nationa) Laboratory for ERDA Surtered externa! radiation levels and collected environments! eatoples. April 1977. Site ticits by Brookhaven National Laboratory to plan instalia- Bite identified. agreement obtained. tion of windmill powered air mmdling stations. Bikini Atoll ome of four sites fur iong-term air sampling. Work supported pbs ERDA. October 1977: Brookheren Nationa! Laborstors installed wind-powered loog-term air aempling station op Bivins Island. Work sapported Data pot yet arailable. by Ia t.c5 Counting end Urine Biocsecy Eampliang—Bikini Atoll Sampling ‘Counting = Yeer 1970': Pooled urine collected. analrsed for Sr-90. Ce-187. and Pu-239. 1971 °: Pooled uripe collected. analyzed for 8r-90. Cs-387. and Pwv-230. 240. 1972: Panied urine collected. Ce-187 concentration abows factor of 4 increa»e over 1970. 8r-90 increase is factor of 2. 1973 ': Cs-137 in urine higher than 1970 by factor of about 10. Kr-80 increase ix factor of 4. April 874°: First ip vivo countiog of Ce-137 in Bikin! residents. Ca-137 urine values about same as 1973. Sr-O0 levels down pear 1070 values. Pu-239. 2K) higber (ban 187] br factor of about 5‘ April 1975 : Pu-28%. 260 bigber than 1971 by factor of 10." Fall 3976 : Pu-239, 240 bigber than 1971 bs factor of 2.'Cs-3387 urine value . tReaults from severe) sarverspoblished Ll» eve report. Br-O0 and Ce-137 are dominen! tn the temrentria! eetircomest. ab ¢ FeSS in marine envircpwest, and ..©-24) and 32+ 240 are important ie soils Radtoactivity on Bikia! Atel! has declisec iguiscantiy P es . iaBrliog eee. GEerest individvals at Efereat times as people come and go at Bikio! aiah B She BNL 3424. Rept 1975. *Thes reesits suspect samples may have ben contaminated. error ip measurement te £7 o/o. DOE ARCHIVES