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Sakamoto, Fuminori; Kozai, Naofumi; Guido-Garcia, F.; Grambow, B.
no journal, ,
Much Cs derived from Fukushima Daiichi Nuclear Power Plant is still staying in the forest area in Fukushima. As a part of elucidation study of the
Cs circulation mechanism in a forest, we measured
Cs radioactivity of egg mushrooms (
) which growth wild in Kawamata city in Fukushima at the each growth stages (egg like state, immaturity, maturity, after maturity) and each parts (pileus and stem). As a result, we confirmed they accumulate
Cs at the stage egg and mature more than the other stages. It is difficult to estimate exactly because the immature sample was slightly one. The radioactivity of
Cs in the samples after maturity decreased. It is suggested that they release again as a fruit bodies die. As the result of comparison of
Cs radioactivity in the pileus and stem, pileus accumulates
Cs more than stem.