Table IV. - (Continued) Sea foods, 2) Sea water!) PPM C. 13. Fallout or soft parts in fish muscle, radio- median value isotopes + <1** 5,89, 90 35+** Csl37 PPM PPM Cesium . 002 ? Cerium , 0004 ? 1) Sverdrup et al. 2) Heinz Co.. (1949 and 1958) 3) Vinogradov ** Concentration Other elements with isotopes of radiological interest Strontium * edible portions Fish muscle?) (1946) (1953) Fukai and Meinke. (1959) Chipman (1958) Cei4l, 144