Evaluating sources and fate of nitrate in riparian aquifer under agricultural land using in situ measured noble gases, stable isotopes, and functional genes

YeoJin Ju1, Dong-Chan Koh2, Dong-Hun Kim2, Bernhard Mayer3 and Hong-il Kwon4, (1)Korea Atomic Energy Research Institute (KAERI), Disposal Safety Evaluation Research Division, Daejeon, South Korea, (2)Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea, (3)University of Calgary, Department of Geoscience, Calgary, AB, Canada, (4)Korea Radioactive Waste Agency, Gyeongju, South Korea