*Shuukhaaz Ganbat¹, Noriko Hasebe¹, Uyangaa Udaanjargal¹, Davaadorj Davaasuren², Shinya Ochiai³, Yuma Shibuya¹ (1.Graduate School of Natural Science and Technology, Division of Natural System, Kanazawa University, 2.School of Arts and Sciences, National University of Mongolia, 3.Low level Radioactivity Laboratory, Institute of Environmental Technology, Kanazawa University)

*Baasansuren Gankhurel¹, Keisuke Fukushi¹, Davaadorj Davaasuren², Eigo Imai¹, TAKUMA KITAJIMA¹, Uyangaa Udaanjargal¹, Tuvshin Gerelmaa², Yasuhito Sekine³, Yoshio Takahashi⁴, Noriko Hasebe¹ (1.Kanazawa University, 2.National University of Mongolia, 3.Tokyo Institute of Technology, 4.The University of Tokyo)