Japan To Release Radioactive Fukushima Water Into The Ocean (Nissan DEGNARAIN, Forbes; October 18, 2020)
Japan to release treated Fukushima Water into the sea [News, Deutsche Welle (DW); October 15, 2020)
https://www.dw.com/en/japan-to-release-treated-fukushima-water-into-the-sea/a-55292352

Also…
Environmental Remediation of the difficult-to-return zone in Tomioka Town, Fukushima Prefecture (CUI et al., 2020)
https://www.nature.com/articles/s41598-020-66726-y
Oceanic dispersion of Fukushima-derived radioactive cesium: a review (KAERIYAMA, 2017)