[HTT23-P02] The geochemical study about the aqueous environment of Chikusa River in Hyogo prefecture
*Yudai Yamamoto1, Ichiro Tayasu2, Takanori Nakano2, Urumu Tsunogai1, Fumiko Nakagawa1, Tadashi Yokoyama3, Hiromune Mitsuhashi4, Ki-Cheol Shin2, Shiho Yabusaki2, Tamihisa Ohta2, Ken'ichi Ohkushi5 (1.Graduate School of Environmental Studies, Nagoya University, 2.Research Institute for Humanity and Nature, 3.Hyogo prefectual Ako School for Students with Special Needs, 4.Institute of Natural and Environmental Sciences, University of Hyogo, 5.Kobe University, Graduate School of Human Development and Environment)