Fig. 5

Ionic scatter diagram of surface water in the Birim River: a Ca²⁺ + Mg²⁺ vs Towns, b Ca²⁺ + Mg²⁺ vs SO₄²⁻ + HCO₃⁻, c Na⁺ + K⁺ vs Cl⁻, d Ca²⁺ vs HCO₃⁻, e Ca²⁺ + Mg²⁺ vs Na⁺ + K⁺, f Na⁺ + K⁺ vs total cation, g Ca²⁺ + Mg²⁺ vs Cl⁻, h Ca²⁺ + Mg²⁺ vs HCO₃⁻, i Ca²⁺ + Mg²⁺ vs total cation