aap Reefe | i ye E i Pei : ; ae Pd: f 360 K. M. WONG TABLE J] ANALYSIS OF SEA WATER oT Sample no. Location Mig |4 3 bs 3 228 33 32 27° 47'N 67° 35'W 27° 47'N 67° 35'W 27° 47'N 67° 35'W Dec. 1968 Dec. 1968 Dec. 1968 15+0.5 26+0.5 2.6+0.7 i 4 267 36° 23'N 70° 3° W June 1969 2640.8 me 269 36°23'N 70°3'W June 1969 1.4+0.2 tak | : 268 36°23'N 70° 3'W Date June 1969 2 am 729 Py {d.p.m. per 1000 kg) Std. dev. 0.6 2320.5 36°23'N 70°3'W June 1969 Rel rae 389 WHOI Aquarium Aug. 1970 2.94+0.8 0.3 13 390 line Aug. 1970 - td ne 207 208 IAEA STD.1 Seawater| 1970 1970 12345 11645 * 210 Seawater | 1970 118+6 DOB 209 ms 211 3 213 : ; ; ; ; A + ye : rE f : Seawater | Seawater 2 1970 1970 s ; 316 +18 1970 298412 214 Seawater 2 1970 313+15 Seawater 2 1970 - 1 P , I 324421 R } °| TABLE III A ANALYSIS OF SEDIMENTS , Sample no. Location Date 739 Py (d.p.m. per kg dry wt.}° Std. dev. 13 13-R 16 Cape Cod, Mass. Cape Cod, Mass. Cape Cad, Mass. 1968 7247 80+2 82+6 6 Cape Cod, Mass. 1968 1968 1968 202 Bombay, India 1970 374+ 15 7 16-R 203 204 : a * The + values are the | o of the counting error. . 3 144+8 Seawater 2 t - 25-04 212 : 07 270 fy < = 7 per 3 ane % Bombay,India Bombay,India 1970 1970 8442 389+ 15 iM A i ft 23 a- 374415 . ° The + values are the 1 o of the counting error. ij Replicate analysis Analyses of sea water, sediments and organisms are shown in Tables II-IV. The average standard deviationof the replicates is well within the I ¢ counting errorof the samples (except for sea-water samples No. 207-210). co at , Contamination and blank activity Little or no plutonium-239 contamination was found in reagent and simulated . ~ : I Er tol of pri Su to det Op< hal sea-water blanks (Table V). The simulated sea-water samples were obtained from deep . . : toe 3 oil well brine known to befree offall-out radioactivities. The average 7°? Pu concen- . . Anal. Chim. Acta. 36 (1971) 355-364 ‘ wa: &