Transfer of Radiocaesium and Stable Caesium from Substrata to Mushrooms in a pine Forest in Rokkasho-mura, Aomori, Japan

摘要

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-570Bq kg~-1 fresh weight and 0.005-1.6 mg kg~-1 fresh weight, respec- Tively. 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~-1 dry weight and 0.29-0.98 mg kg~-1 dry weight, respectively.