1. Environmental Radioactivity
Assessment Team, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Korea
2. Center for Urban
Energy Systems, Korea Institute of Science and Technology, Hwarangno
14-gil 5, Seongbuk-gu, Seoul 136-791, Korea
3. Department
of Environmental Engineering, Chungbuk National University, 52 Naedong-ro, Heungok-gu, Cheongju, Chungbuk 361-763, Korea