Author:Walters, Chavon R; Somerset, V; Van der Horst, C; Silwana, B; Le Roux, S; Iwuoha, EDate:May 2012Investigations of trace metal concentrations (Al, Fe, Cd, Pb, Zn and Hg) in surface water, surface sediment and fish in four of South Africa’s Water Management Areas (WMAs) were carried out in August (winter / dry) and November (summer / wet) ...Read more