Research Article

Geochemical and Geophysical Study in a Degraded Area Used for Disposal of Sludge from a Water Treatment Plant

Figure 3

Vertical profiles of various parameters analyzed in samples obtained from monitoring well drillings. Highlighted bands on each graph correspond to background levels (range of two standard deviations of the samples average value from the control area—Upstream monitoring well). (a) Results of potential acidity, CEC, pH, organic matter, exchangeable-Al, and available-Pb; (b) Results of Mn, available-Mn, available-P, available-Zn, exchangeable-Na, and exchangeable-Ca.
489182.fig.003a
(a)
489182.fig.003b
(b)