Jan 12

4170 Bq/Kg of Radioactive Cesium in Crickets in Iitate-mura, Fukushima (EX-SKF, Jan. 11, 2012):

A researcher (vice president) at Tokyo University of Agriculture and Technology collected 500 crickets (1 kilogram) in Iitate-mura in Fukushima Prefecture, and found 4,000 becquerels/kg of radioactive cesium. He also tested locusts in different locations in Fukushima, and found radioactive cesium in them.

Bio-concentration at work. No information whether he tested other nuclides like radioactive silver (Ag-110m). Professor Bin Mori of Tokyo University found radioactive silver highly concentrated (1000 times the amount in the environment) in Nephila clavata he caught in Iitate-mura.

From Yomiuri Shinbun (1/12/2012):

東京電力福島第一原発事故で、原発から40キロ離れた計画的避難区域内に生息するコオロギから1キロ・グラム(約500匹)あたり4000ベクレル以上の放射性セシウムが検出されたことが、東京農工大の普後一(ふごはじめ)副学長(昆虫生理学)の調査でわかった。

A survey conducted by Hajime Fugo, vice president of Tokyo University of Agriculture and Technology (specialty: insect physiology) found over 4,000 becquerels/kg of radioactive cesium in crickets (500 of them that weigh about 1 kilogram) from within the planned evacuation zone 40 kilometers away from Fukushima I Nuclear Power Plant.

別の場所のイナゴからも最大200ベクレルを検出した。

In another location, 200 becquerels/kg of radioactive cesium was found from locusts.

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Dec 12


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