4 of its 13766 content relative to the naturally occurring OR, If the 13756 content in soil is less than 5.2 pCi/em, for example, the 137 C6, content.of the copra Aa ag 7% 4 he yeole produced may be less than its “OK content, ard |‘oneAabebeerewethat itsparker ~ Lat Ch oe oe é att Alea ty, a4: aoecane Pe!Hated ore nett ” C Nee| ability should be yeraffected. A A Cs soil concentration’ Table 10 shows the mean and soil removal actions that may reduce the 13765 concentration in copra to values equal to and twice that of the natural 40% for all northern islands (average profile data for PEARL, ALICE, BELLE, and CLARA, plotted in Figs. 8-11 and included in Table 8, were used in the calculations for each of these islands). | On JANET, for example, the commercial agriculture area in its current condition should yield copra with an average 137 6, 40x concentration ratio of about three. Removal of a 6 cm thick layer of soil may reduce this value to two, and removal of 14 cm may result in copra with equal concentrations of 13706 and 40. Note that for islands planned to be used for commercial agriculture, it is possible that only JANET and PEARL have 13766 soil values high enough to yield copra with a 13766 4. ratio greater than 2. Test plantings of coconut would be needed in areas where removal of soil has 137 been conducted and the level of Cs in coconut meat analyzed before any committment is made for planting of ci coconut trees in commercial quantities. pyle” i,tee Whth—addi-ttonelseedy it may be. possible to predict witk=eenftdence the 137 level of Cs in coconut meat through analysis of stems and leaves of imate trees. ; 4 PN cd =e ‘ ‘ mh uk i i 1 / 4 a? . / ' 7 J * Po, cnt : - /. an rh ! rf? ' :oe + . . por / . : - pew - f Ay A ain weet ‘ f j A é i>.Ne . A tit fc . tate ‘ ’ vl i fee : ' “t ae . ae . OMEN tas “7.” Os ¢ ots fg / nF tk — ety f -~or ~ i, ~ ‘ Lae fe - x ee tin a fe fad - eer Mae TOoe ae Ageia, f fe 4k 7; see y ee ; ; —_ i. mo a ekte ay LA pra ationadel road Yat f ftp. é - oe, ' . . jpre ae f poo tage ehsted ta - Se atts woe —-— . . Te! at poe Tr Pa Btee pate 2 a mF This would save time.' | >» ‘ # : = pigaad, Ae 8 / a 043 7 x