Long-term Trends of Plot-scale Cs-137 Wash-off on Various Land Uses in the Area Affected by the Accident of Fukushima Dai-ichi Nuclear Power Plant

Yoshifumi Wakiyama1, Yuichi Onda2, Kazuya Yoshimura3, Junko Takahashi4, Noriko Nakamura5 and Ryo Manome5, (1)Fukushima University, Fukushima, Japan, (2)University of Tsukuba, Center for Research in Isotopes and Environmental Dynamics, Tsukuba, Japan, (3)Japan Atomic Energy Agency, Fukushima, Japan, (4)University of Tsukuba, Center for Research in Radiation, Isotopes and Earth System Sciences, Tsukuba, Japan, (5)University of Tsukuba, Tsukuba, Japan