[Men, Wu; Uchida, Shigeo; Wang, Hai; Zheng, Jian; Ni, Youyi] Natl Inst Quantum & Radiol Sci & Technol, Natl Inst Radiol Sci, Inage Ku, 491 Anagawa, Chiba 2638555, Japan.
[Men, Wu] State Ocean Adm, Lab Marine Isotop Technol & Environm Risk Assessm, Inst Oceanog 3, 184 Daxue Rd, Xiamen 361005, Peoples R China.
[Wang, Hai] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
[Kumamoto, Yuichiro] Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, 2-15 Natushima Cho, Yokosuka, Kanagawa 2370061, Japan.
[Yamada, Masatoshi] Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Chem, 66-1 Hon Cho, Hirosaki, Aomori 0368564, Japan.