Physicochemical Characterization of Mining Waste from the Betare-Oya Gold Area (East Cameroon) and an Adsorption Test by Sabga Smectite (North-West Cameroon)

Figure 5

Spatial variations of heavy metals analyzed in water samples: (a) copper; (b) zinc; (c) manganese; (d) iron; (e) chromium; (f) arsenic; and (g) lead.

(a)

(b)

(c)

(d)

(e)

(f)

(g)