Growth of Photosynthetic Biofilms and Fe, Pb, Cu, and Zn Speciation in Unsaturated Columns with Calcareous Mine Tailings from Arid Zones

<table>Mine tailings piles at Concepción del Oro. Location of the tailings piles at the Concepción del Oro mining area (North-Central Mexico) and Pile 2 from where the sample was taken.</table>

Applied and Environmental Soil Science

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Figure 2

Figure 2: Growth of Photosynthetic Biofilms and Fe, Pb, Cu, and Zn Speciation in Unsaturated Columns with Calcareous Mine Tailings from Arid Zones 