*Yasuhito Igarashi¹, Kazuyuki Kita², Yukihiko Satou³, Tomoaki Okuda⁴, Yoshinari Abe⁵, Keisuke Sueki⁶, SHINOHARA ATSUSHI⁷, Kazuhiko Ninomiya⁷, Tsutomu Ohtshuki¹, Koichi Takamiya¹ (1.Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, 4.Department of Applied Chemistry, Keio University, 5.Faculty of Science,Tokyo University of Science, 6.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 7.Graduate School of Science, Osaka University)

*Taiga Okumura¹, Noriko Yamaguchi², Terumi Dohi³, Kenso Fujiwara³, Kazuki Iijima³, Toshihiro Kogure¹ (1.The University of Tokyo, 2.National Agriculture and Food Research Organization, 3.Japan Atomic Energy Agency)

*Haruo Tsuruta¹, Yuichi Moriguchi², Teruyuki Nakajima³ (1.Remote Sensing Technology Center of Japan, 2.The University of Tokyo, 3.Japan Aerospace Exploration Agency)

*Miho Fukuda¹, Zheng Jian¹, yamazaki Shinnnosuke¹, Tatsuo Aono¹ (1.National Institute for Quantum and Radiological Science and Technology, National Institute of Radiological Science)

*Seiya Nagao¹, Shouhei Miyasaka², Shun Watanabe³, Kyuma Suzuki³, Shinya Ochiai¹ (1.Institute of Nature and Environmental Technology, Kanazawa University, 2.Graduate School of Natural Science and Technology, Kanazawa University, 3.Gunma Prefectural Fisheries Experimental Station)

*Zul Hilmi Saidin¹, Yuichi Onda², Hiroaki Kato², Momo Kurihara², Kazuki Nanko³, Delphis F. Levia⁴ (1.Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan, 2.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tsukuba, Ibaraki, Japan, 3.Department of Disaster Prevention, Meteorology and Hydrology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan, 4.Departments of Geography, University of Delaware, Newark, Delaware, USA)