Open Access Research Paper Views (513) Download (13) Concentrations of heavy metals in raw wastewaters of Cotonou city (Benin) Dogbè Clément Adjahouinou, Emile Didier Fiogbé J. Bio. Env. Sci.5( 2), 534-541, August 2014. Key: Cotonouheavy metalsMain sewersWastewater Details