Meee ga * TI i. yet \O Oy NN R OD ASE EYSeRETOR th SCIENTIFIC REPORT 2 Aon eTNREEN ca - RADIOACTIVITY SURVEY OF THE MIT) PACTPIC &@Ry fe TABLE OF CONTENTS METEOROLOGICAL Pag Radioactivity in Air and Rain Water efor eae eoe mee einer 1 88sr, "Sr and 77Cs in Rain Water ccsscecerececsee 5 Measurement of Environmental Radiation and a HE apeme aH Exposure Dose eoeeeae cece e ee erereoete*an eae ene ete eOatranvvasnvea se 9 OCEANOGRAPHICAL Radioactivity of Sea Water ~ Gross 8-activity -.....413 Radioactivity of Sea Water - Nuclide analysis .:... 49 Radioche:sicsl Analvsis of 9° Sr and Sea Water *87Cs in *eeenetveeecse ere eaetaetetenw.- com am ee a 2 me a 24d Total 7 -Radiation in Sea Water Measured with Scintilzation COUNnTCT ee 2c eccereereevresceenanen 33 Oceanographical Properties of Sea Water ......+e+6. aq BIOLOGIGALT, Plankton Survey ect ee see tenon etc ees eto tae ereetaseeocunesetas 49 Activity of Fish Samples Surveyed Aboard Ship ..-.+ 55 Radiological Analyses of Tuna Fish .........-.2.008 5 8 On the Radiosctive Substances in Various ik etbaOTEee aR Organs ne “E 4 4 of Fishes sO cam toon PRP Oe wm Poe ew aeeoe te eaeaoe ease 67 SaoRI TUR VS a

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