Are NORMs Accumulated in Filters of Drinking Water Facilities?

Sungwook Choung1, Woosik Shin2, Mihee Park3, Jeong-Hee Han3, Jong-Sik Ryu4, Weon Shik Han5 and Byung-Uck Chang6, (1)KBSI Korea Basic Science Institute, Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)KBSI Korea Basic Science Institute, Seoul, Korea, Republic of (South), (3)KBSI Korea Basic Science Institute, Chungbuk, Korea, Republic of (South), (4)KBSI Korea Basic Science Institute, Chungbuk, South Korea, (5)Yonsei University, Department of Earth System Science, Seoul, South Korea, (6)KINS Korea Institute of Nuclear Safety, Daejeon, Korea, Republic of (South)