ppm) and all. y less than 50 K (gener ble gea . han exc jr 'OM ar® , ls soi The Avge most tent. Some native plant species and con l era mi~ cagra and P in al gin mar of K deficiency. In fact, most ns sig te ini cef w sho ’ cie spe d introduce na vernamental plants grow in only a very limited way rs 4 {ntroduced food c ¢ a3 well as N, P, and trace minerals. without the additi“! Of marily CaCO3z and no clay, The unique cennpos| EN of coral soil, i.e., pri ferent tert yf avai iability to plants for '3’Cs and 90Sr very dif produces a pat from most data European if the literature, which are based on U.S. and This unique uptake pattern is [Wate clay soils¥ eequr ted aluminuf discussed in more Hd tall $9 the section on Concentration Ratios. LIDES IN SOIL SURE ANO RADIONUC EXTERNAL GAMMA EX from al gamma dose-equivalent rate ern ext e rag ave tha t? lis 4 le Tab ands hased on the EG&G aerial survey for each of the isl radionuclides 1 i got! 1981). (Tipton and Mei lial, been decay The dose-equivalent rates have the rates atgiv The initial annual dose-equivalent iso corrected to janilary 1987. en n is compar A . m/y mre 240 to 1 ut abo m fro ge ran sadividual sslanil® rate the average external dose-equivalent for Bikini and [Hell tstands between asurement survey conducted in and a ground-me from the aerial aurvey 19 1978 1975 (Gudiksen ol ales 1976). Measurements in the ground survey were made on 100-m grid across Eneu Island. a 30-m grid acrue* gikint Island and a The ly identical; the aerial survey gave results of the \W surveys are essential Island valent rate of 160 mrem/y for Bikini qui e-e dos ma gau s! ert ext e rag ave an ground-measurement survey gave 159 the le whi , and tsl l Ene fav m/y and 12 mre ernal mrem/y for Eneu Island. The ext the top 18 and nd sta wl Biki for m/y in mre ®9Co ectly proportional to the !37cs and dir TS e rat p en dose-equival column. 10 to 20 cm of th sail to 10 cm) n of the surface soil (0 Also listee in Table 4 is the compariso the limited soil estimated from the aerial survey and 137cs specific wtlvtlY rad ionuclide concentrations in this report have also’ profile samp lins yne been decay corns thd » January 1987. for larger islands, such as Bikini t tha te ica ind 4 le tab '" s ult res The where the distribution and Eneu where ye aerial Ae bE eee of soil survey 18 most accurate and from both profile’ covers most of the island, the measured activities methods are if cagsomavle agreement. 30003149 Four values are listed for '137¢s5 12