A Study on migration behavior of anthropogenic radionuclides in the Japan/East Sea, 2

Otosaka, Shigeyoshi; Ito, Toshimichi; Kawamura, Hideyuki; Kobayashi, Takuya; Suzuki, Takashi; Togawa, Orihiko

Dai-45-Kai Kankyo Hoshano Chosa Kenkyu Seika Rombun Shorokushu (Heisei-14-Nendo), p.77 - 78, 2003/12

no abstracts in English

Report for marine environmental surveillance

; ; Isozaki, Tokuju; ; ; *

PNC TN8440 97-037, 501 Pages, 1997/10

PNC-TN8440-97-037.pdf:9.02MB

None

Elucidation on the desorption of Cs from marine soil

Segawa, Yukari; Kumagai, Yuta; Watanabe, Masayuki; Otosaka, Shigeyoshi; Kobayashi, Takuya

no journal, , 

Cesium (Cs) is strongly adsorbed on the sea soil, so that it is reasonably considered that the elution of Cs by desorption has not been occurred. However, by the environmental survey of radioactivity after the Fukushima Dai-ichi Nuclear Power Plant accident, radioactive Cs in sea soil has been constantly decreased for these five years. This result possibly suggests that the transition of Cs is caused by continuous elution or suspension. In order to predict the transition behavior of Cs more accurately over a long period of time, it is important to elucidate the desorption process of Cs from the sea soil. So we made a new apparatus for observing the only desorption process of Cs a long period of time.