Figure 7. MEB images of the surface of untreated brick grains (A) treated with 0.8 M NaOH at 90°C for 6 days (B)

From

Assessment of Water Contamination by Metallic Trace Elements at Mining Sites: The Case of the Ouham River in the Central African Republic

Eric FOTO, Oscar ALLAHDIN, Olga BITEMAN, Nicole POUMAYE, Seraphin PINIKO

American Journal of Environmental Protection. 2022, 10(2), 47-56 doi:10.12691/env-10-2-1