RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Radioecological Studies of 137Cs in Limnological Ecosystems
137Cs Concentrations in Water, Sediment and Biota at the Lower Region of the Famous River in Saitama Prefecture—
Sadaaki MIYAKEMisako MOTEGITakashi OOSAWAKiyoaki NAKAZAWAHiromitsu OGATAYoshiro IZUMOFumio NAKAMURA
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JOURNALS FREE ACCESS

1996 Volume 45 Issue 2 Pages 82-86

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Abstract

The concentrations of 137Cs in water, sediment and biota at the lower region of the famous river in Saitama prefecture were determined in order to elucidate the radioecology of 137Cs in limnological ecosystems.
137Cs concentration in water was 0.10 mBq/l.137Cs concentrations in sediment, shellfish, Sinotaia quadratus historica (mean for 2 detectable samples), and fish, Carassius auratus cuvieri (mean for 2 detectable samples), were about 6200, 840 and 320 times higher than the concentration of the water, respectively. But 137Cs radioactivity in the crustacea, Procambarus clarki, was significantly not detected.
So, 137Cs transfer mechanism in the limnological ecosystems was indicated in part.

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© Japan Radioisotope Association
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