Mercury and arsenic in the gold mining regions of the Ankobra River basin in Ghana W. Bannerman, M. Potin-Gautier, D. Amoureux, S. Tellier, A. Rambaud, M. Babut, A. Adimado et C. Beinhoff J. Phys. IV France, 107 (2003) 107-110 DOI: 10.1051/jp4:20030255