Transfer of radiocaesium and stable caesium from substrata to mushrooms in a pine forest in Rokkasho-mura, Aomori, Japan

Mushrooms and substrata collected from a coastal pine forest in Rokkasho-mura, Aomori Prefecture, Japan were measured for radiocaesium and stable Cs. The ranges of 137Cs and stable Cs concentrations in mushrooms were ND-570 Bq kg -1 fresh weight and 0·005–1·6 mg kg -1 fresh weight, respectively. Bot...

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Veröffentlicht in:Journal of environmental radioactivity 1998-02, Vol.39 (2), p.149-160
Hauptverfasser: Tsukada, Hirofumi, Shibata, Hisashi, Sugiyama, Hideo
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creator Tsukada, Hirofumi
Shibata, Hisashi
Sugiyama, Hideo
description Mushrooms and substrata collected from a coastal pine forest in Rokkasho-mura, Aomori Prefecture, Japan were measured for radiocaesium and stable Cs. The ranges of 137Cs and stable Cs concentrations in mushrooms were ND-570 Bq kg -1 fresh weight and 0·005–1·6 mg kg -1 fresh weight, respectively. Both 137Cs and stable Cs concentrations in mushrooms were higher than those in common agricultural plants. The concentrations of 137Cs and stable Cs in the substrata were 37–261 Bq kg -1dry weight and 0·29–0·98 mg kg -1 dry weight, respectively. The specific activities of 137Cs in mushrooms were several times higher than those in the substrata. The substratum-to-mushroom transfer factors of 134Cs, 137Cs and stable Cs were in the range of 0·1–3·5, 0·03–3·3 and 0·01–1·7, respectively. These transfer factors were 1–3 orders of magnitudes higher than those for plants. The transfer factors of 137Cs were equivalent to those of 134Cs and were also significantly correlated to those of stable Cs.
doi_str_mv 10.1016/S0265-931X(97)00051-9
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source ScienceDirect Journals (5 years ago - present)
subjects Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on plants and fungi
Fundamental and applied biological sciences. Psychology
title Transfer of radiocaesium and stable caesium from substrata to mushrooms in a pine forest in Rokkasho-mura, Aomori, Japan
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