*Takamura Shiori¹, Yuichi Onda¹, YUPAN ZHANG ¹, Asahi Hashimoto¹, Chiu Chen wei¹, Hiroaki Kato¹, Takashi Gomi² (1.University of Tsukuba, 2.University of Nagoya)

*Asahi Hashimoto^1,2, Chen-Wei Hashimoto Chiu², Yuichi Onda², Makiko Okazaki Tateishi³, Kenji Tsuruta⁴, Takashi Gomi⁵ (1.Graduate School of Geosciences, University of Tsukuba, 2.Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba, 3.Research Administration Center, Kyoto University, 4.System Analysis Division, Lake Biwa Environmental Research Institute, 5.Graduate School of Bioagricultural Sciences, Nagoya University)

*SHAOYAN FAN¹, Miho Fukuda¹, Keisuke Taniguchi², Yuichi Onda³ (1.Fukushima Prefectural Centre for Environmental Creation, 2.National Institute of Technology, Tsuyama College, 3.University of Tsukuba)

*Hiroaki Kato¹, Yuma Niwano¹, Yuichi Onda¹ (1.Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba)

*Yuichi Onda¹, Hikaru Sato¹, Daisuke Tsumune¹, Katsuhiko Kohata², Tomomi Okamura² (1.Center for Research on Radiation, Isotopes and Earth System Sciences, 2.Tokyo Electric Power Company Holdings)

*Junko Takahashi¹, Takuya Sasaki¹, Satoshi Iguchi¹, Yuichi Onda¹ (1.Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba)

*Shunsuke Mishima¹, Yuichi Onda¹, Junko Takahashi¹ (1.University of Tsukuba)

*Naoyuki Wada¹, Yuichi Onda², Jim T Smith³, Yasunori Igarashi⁴ (1.University of Tsukuba, 2.Center for Research in Radiation, Isotopes and Earth System Sciences, 3.University of Portsmouth, 4.Institute of Environmental Radioactivity)

*Tomura Kosuke¹, Yuichi Onda¹, Junko Takahashi¹, Taichi Kawano¹, Naoyuki Wada¹, Yutaro Nagata¹ (1.University of Tsukuba)

*Yutaro Nagata¹, Yuichi Onda², Koichi Sakakibara³, Junko Takahashi², Tsubasa Hiramatsu³ (1.College of Geoscience, School of Life and Environmental Sciences, University of Tsukuba, 2.Center for Research in Radiation, Isotopes, and Earth System Sciences, 3.Department of Environmental Sciences, Faculty of Science, Shinshu University)