Ta0le@ w. wee eeUR, 99%: and -**am a Surface So1l Sampies 7 Co.lected at 3ik:an Acoil in 977, acetnvistias in wCivzg= 1, ieat.20 Taiel?, luroxaen Tgi*i0, JomoatomucoKy 231+29, JonecaeratucoKu 2295-7 5,, oe woek TLS 22.2 27.3 “78>, 3.5 Shee 7.7 =).3 1.7 s).2 Zors Jeacororrturu, iai-3l 36, -2.3 7.2 0.3 wd. thei 24.2 ~).2 JO.29e9.32 14.9+ 22.9 ~).7 Pijonsa Grave lew s:anter 92 i3lane Yam, ‘sese¢ and = 150 vds Nam, .50 vas iW sc Sunxer 220 ’ds 2 38 west cx amu, op of sumser cancer Jf .4.and Nam, 159 vas = of dunker, cantar of alana 2ikin:, Row 14 center 3L co 23st JUN aikini, J corner of cer. 3L anc Lagoon Jeach id. mare aeD DS 4.3 m).ac 7.9 29,29 777 2405,,,2785,, -.46 3.37 3.31 2.05 727-999, 94h.5 4.33 3.31 3.27 2.75 teed ie 33.4 33.7 ..9d 2.3520.9% 13.2 9.35 73.9 1.357 7,4 -.5 2,573.02 39.9 23.5 20.5 L.aa J.3 -).° 9.45=).74 2.2 +9.3 29... =).3 3.41370.36 teeeri.de N.a.* 23720. 22 4a 7,33 1.50 -- 4.04 3ixiai, Row 34 cancer 3L co 3.9 =O.2 9.0670. 34 2.1 -0.2 50.3 1.42 3i*in2.. Row 38 2nd 3LN to 2.5 *0.2 9.5740.24 3.2 9.2 35.7 2.98 3ixia., ow 25 or 24 sand- 0.50+0.95 N.3. -- - -- 10.3 9.946 T.2. 1.3 ~1.3 -- 3.27 13.2 -3.3 Noa. 3.4 29.55 7 1.38 ~3at 38 Leagcod Jeacn Ad. pila samole, 100 yds § ae wad 3LN 3ixiar, Row 14 cer 3L to wae 305 3ik:a:, Zow 24 cer 3L- co vse LS 3ikini, ow 24, ist 3LN =o 9.3 0.4 3.2940.97 +.. O.2 23.3 2.27 Bikini. Row 24, ise 3L5 to zac 2L5 3ixini, Row 24, lst 3LN so ena 344 Zaeman, ‘Wend of tsland $00-720 aR/hr area Zneman, 500-700 aa/hr area 614.6 =).4 3.9940.02 3.3 =0.4 i23.9 2..9 7,4 0.2 3.2927.93 3.5 0.3 39.9 2.23 209.2 +9.) 97.5 —~.3 26.0 =1.5 2.16 3.57 360.3 ~3.9 174.3 =2.3 45,0 +1.9 2.97 9.35 2% Lagcon Jeach Ad, ‘See ter. 29. as * Sing.e samole error values are one-sigma, provagated, counting ertors. .9.2. Noe resolved Sy alpha speceroscooyv. = N.3. Noe significanc. As a resuic, some of che diecary icems Likely <5 nave che nigner tadionuclides courent, 4.3. 2andanus and Sreaqfruic, are ace actual problems co dace. They aay of amy not 38 of concern ia che future as -he aiame:sgs aacure and che cmuic Decomes available in tuanmtity. Thus, che dliecs of secpie Living in =hese “wo atolls are expecced co change over che coming vears reflecting the reiative influences of imported and Locally grown Zsod items. allowance has Seen nade for chis in development of radiacion dose estimacas. ixperimeacal studies ac Znewetax asy yield techniques co incerfupe or break the recyeling Qc radionuclides through the vegetation, soil, and ground vacer systems, aad cheresy reduce she radic~ activicy concenc of some taporcant diecary icems. <All of che aforemencioned Zactors will secessicate contisuisg monitoring of che diet for many years. 2eriodic sampling and analysis of 3011 and ground ‘wacer vi.l Se aecessary in order to establish srends in che changes of radicaccivicy comtenc of chese media. +a the sorthern Marshalls, drinking wacer is obcainzed primarily from tain vwacer cacchmencs. While che radionuclide contene of callected rain vater vill soe be zero, this source {3 noc expected to contribute signizicamely to the radiation exposure sicrure for ‘ucure 3ikisi, Inewecak, and Rongelap Acoll residencs. deowever, vain water which drains ‘rom che windward sida of Suilding rooftops may srovide useful daca on fesusvension of radioactivity in the soil. The collection of rain water oy Tucure 3ikint md inewecak Tesidencs is being factlicaced Sy including gueters and vater storage tacks in plans for houses and communs:cy seructures, Some of che Larger islands have ‘resh ground vacer ‘ocaced only a few ceec >elow the surtace. Analysis of chis vater for ics radionuclide contene has 3een Limited to dare and che Gapacity af this cesource = serve che needs of ‘sland restdeacs is ace well defined, More seudy of rais wacer is Seing supported Sy ZADA. Personnel Mon:soring Dose sredictions for 3ikiat and Znewetak Acoll residencs dertved irom environmental data Save Seen deliberately conservative, and ascadlisn srooanle upper Limits om <oses co 5e axzpected for individuals.