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Hagiwara, Hiroki; Iijima, Kazuki; Onoe, Hironori; Oyama, Takuya; Nakanishi, Takahiro; Konishi, Hiromi*; Akai, Junji*
no journal, ,
Estuary of alluvial is specific area which has shelved land form gradient and current velocity is degraded by mixing freshwater and seawater. The radiocaesium from the Fukushima nuclear accident fallout is strongly sorbed on fine grain size particles. It is necessary for fine grain size particles to evaluate behavior at estuary. we measured salinity concentration and sampled bottom sediment. Bottom sediments were analyzed by XRD and TEM. The results showed salinity distribution and the sediments include black color sediments. It is confirmed halloysite, diatome, and bacteria by TEM. The area has higher radiocaesium concentration than upstream.
Hagiwara, Hiroki; Akai, Junji*
no journal, ,
Radiocaesium emitted by Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident still remain at surface soil and redistributed up to the present date. Radiocaesium have possibilities sorbed onto mineral surface but there is few report. This report is relationship between caesium and minerals, and also current investigation research results.
Hagiwara, Hiroki; Akai, Junji*
no journal, ,
no abstracts in English