1. Japan EnviroChemicals, Ltd., 2-17-85 Juso-Honmachi Yodogawa-ku, Osaka, 532-0024, Japan (E-mail: hirobe_masato@jechem.co.jp; goda_yasuhiro@jechem.co.jp)
2. Public Works Research Institute, 1-6 Minamihara, Tsukuba, 305-8516, Japan (E-mail: okayasu@pwri.go.jp)
3. Tokyo Electric Power Environmental Engineering Co., Inc., 2-3-6 Ohnodai midori-ku, Chiba, 267-0056, Japan (E-mail: tomita-jun@mail.tee-kk.co.jp)
4. National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Japan (E-mail: takigami@nies.go.jp)
5. Graduate School of Engineering, Osaka University, 2-1 Yamada-oka Suita, Osaka, 565-0872, Japan (E-mail: ike@env.eng.osaka-u.ac.jp)
6. Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga 520-0811, Japan (E-mail: htanaka@biwa.egc.kyoto-u.ac.jp)