Radioisotope Research Center of Chiba University measures the radiation rate at any time. You can refer the outcomes at website. (The normal rate is between 0.05～0.3μSv/h.)

立博体育平台_立博体育官网-登录注册s:
Radioisotope Research Center
Associate Prof. Hiroshi Kumagai 043-290-3007
Assistant Prof. Hiroyuki Suzuki 043-290-3009