Hydrogeochemical processes in a shallow coastal plain sand aquifer and tidal river systems (Calabar,Southeastern Nigeria): tracking wastewater and seawater pollution in ground and river waters
(1) Department of Earth and Ocean Sciences, University of Liverpool, 4 Brownlow Street, Liverpool, L69 3GP, UK;(2) Department of Geology, University of Calabar, Unical Post Office, P.O. Box 3609, Calabar, 540001, Nigeria