About IMAI AKIO
About MATSUSHIGE KAZUO
About INOUE TAKANOBU
About FUKUSHIMA TAKEHIKO
About ISHIBASHI TOSHIMASA
About lake water
About Water pollution in general
About Physical methods of separation methods
About 琵琶湖
About 湖水
About 流入河川
About 水中
About 溶存有機物
About 分画