Figure 5. a bivariate plot of Ca/Na vs HCO3/Na, b Ca/Na versus Mg/Na of the groundwater samples, showing the effect of water–rock influence on the groundwater chemistry

From

Hydrochemical Assessment of Groundwater Quality in the City of Manga and the Surrounding Area, Burkina Faso, West Africa

Césard Millogo, Blehiman Sagnon, Sayoba Kafando, Samuel Nakolendoussé

American Journal of Water Resources. 2024, 12(4), 139-148 doi:10.12691/ajwr-12-4-4