This document is downloaded at: 2020-05-24T04:10:54Z Title On the use of coprostanol to identify source of nitrate pollution in groundwater Author(s) Nakagawa, Kei; Amano, Hiroki; Takao, Yuji; Hosono, Takahiro; Berndtsson, Ronny Citation Journal of Hydrology, 550, pp.663-668; 2017 Issue Date 2017-07 URL http://hdl.handle.net/10069/37585 Right © 2017 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc- nd/4.0/ NAOSITE: Nagasaki University's Academic Output SITE http://naosite.lb.nagasaki-u.ac.jp