Abstract
I HAVE analysed bittern and carnallite of industrial origin and deduced the concentration of cæsium-137 in the coastal waters in early 1958 of Japan as 70–150 µµc. kgm./l.1 Recently, by application of a low-level β-counting equipment, cæsium-137 has been successfully determined by direct treatment of 6–20 litres of sea-water.
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References
Yamagata, N., and Matsuda, S., Bull. Chem. Soc. Japan, 32, 497 (1959).
Yamagata, N., and Yamagata, T., ibid., 31, 1063 (1958).
Partly published in ‘Radiological Data in Japan II’, ed. by Y. Hiyama, ‘The Effects of Atomic Radiation’, U.N. Report Annex D, A/AC.82/G/R.30 (1958).
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YAMAGATA, N. Concentration of Cæsium-137 in the Coastal Waters of Japan (1959). Nature 184, 1813–1814 (1959). https://doi.org/10.1038/1841813b0
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DOI: https://doi.org/10.1038/1841813b0
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