Water quality and health risk assessments of illegal gold mining …
1. Introduction. Southwestern river system of Ghana constitutes about 22% of the three-drainage system in the country. The river system includes Tano, Bia, Daboase, Ankobra, and Pra rivers (Mantey et al., 2017; Yeleliere et al., 2018).Pra and Ankobra rivers form the two major estuarine systems in Southwestern Ghana.