The Concentrations of 60Co and Stable Cobalt in the Migratory Marine Organisms

In order to investigate both the contamination level and distribution of radioactive nuclides in the marine environment, the concentrations of both 60Co and stable cobalt were determined. The samples collected from the sea around Japan were fishes, squids. The analytical method for 60Co was consiste...

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Bibliographic Details
Published inRADIOISOTOPES Vol. 31; no. 1; pp. 16 - 20
Main Authors FUKATSU, Hiroko, NAKAYAMA, Kazunari, IMAZAWA, Yoshiaki, ABUKAWA, Joji, HIGUCHI, Hideo
Format Journal Article
LanguageJapanese
Published Japan Radioisotope Association 15.01.1982
Subjects
cobalt
cobalt-60
enrichment factor
environmental radioactivity
migratory marine organisms
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Summary:In order to investigate both the contamination level and distribution of radioactive nuclides in the marine environment, the concentrations of both 60Co and stable cobalt were determined. The samples collected from the sea around Japan were fishes, squids. The analytical method for 60Co was consisted of the radiochemical separation using ion exchange resins followed with the low background beta counting, and that for stable cobalt was the spectrophotometric determination. The results obtained were as follows: (1) The viscera of squids was found to enrich both 60Co and stable cobalt. (2) No 60Co was detected in fishes except the liver of bonito taken from the north west Pacific. (3) The correlation between 60Co and stable cobalt was rather good in the squids samples. (4) The enrichment factors for squids and fishes agreed well with the values reported by B. Patel or S.E. Tompson.
ISSN:0033-8303
1884-4111
DOI:10.3769/radioisotopes.31.16