Effects of decontamination work on riverine radiocaesium activity concentrations in Fukushima affected area

Keisuke Taniguchi1, Yuichi Onda2, Kazuya Yoshimura3, Hugh Smith4, Willium Brake5, Takaaki Kubo6, Takayuki Kuramoto1, Takayuki Sato1 and Saori Onuma1, (1)Fukushima Prefectural Centre for Environmental Creation, Miharu, Fukushima, Japan, (2)University of Tsukuba, Center for Research in Isotopes and Environmental Dynamics, Tsukuba, Japan, (3)Japan Atomic Energy Agency, Fukushima, Japan, (4)Landcare Research NZ, School of Environmental Sciences, Lincoln, New Zealand, (5)Plymouth University, Plymouth, United Kingdom, (6)University of Tsukuba, Colleage of Geoscience, Tsukuba, Japan