Investor Presentaiton

resuspension from forest Observed monthly deposition of 137Cs at Tokyo/Tsukuba, Fukushima-Shi and Futaba-Gun 107 1370s Bq m-2 Fukushima_shi + 1870s Bq m-2 Futaba eun 1370s Bq m-2 Tsukuba/Tokyo 137 - 'Cs monthly deposition ( Bq m month¯1) 105 Nuclear tests by China 1964-1980 103 Resuspension Obdroby accident from forest 10¹ former USSR. USA 10-1 and others 1945-1962] 103 !! 1950 1960 1970 1980 1990 2000 2010 2020 date Aoyama, 2019, Kagaku July 2019, Iwanami, in Japanese

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