4:15 PM - 4:30 PM
*Ryoga Ono1, Yoichiro Fukuda2, Masahiko Fujii1,3 (1.Graduate School of Environmental Science, Hokkaido University, 2.Hokkaido Research Organization, Industrial Technology and Environment, Research Departure Research Institute of Energy, Environment and Geology , 3.Faculty of Environmental Earth Science, Hokkaido University)