Aqueous Fe (squares) and As (triangles) concentrations released during experiments AD1 (a), AD5 (b), CP1 (c), CP5 (d)

<p><b>Copyright information:</b></p><p>Taken from "Decoupling of arsenic and iron release from ferrihydrite suspension under reducing conditions: a biogeochemical model"</p><p>http://www.geochemicaltransactions.com/content/8/1/12</p><p>Geochemical Transactions 2007;8():12-12.</p><p>Published online 29 Nov 2007</p><p>PMCID:PMC2246110.</p><p></p> Empty symbols represent control experiments without bacteria. Proportions of released Fe and As are calculated by subtracting the concentration at the beginning of each experiment (Fig. 2) from the concentrations measured over time, and then dividing the differences by the initial solid content of Fe and As (Table 1), respectively. Error bars represent the standard deviation of duplicated measurements

Concentrations of aqueous Fe(II) in mg/L, of aqueous As(V) (black bars), As(III) (gray bars) and As(tot) (white bars) in mg/L, and of bacteria in million cells/mL

<p><b>Copyright information:</b></p><p>Taken from "Decoupling of arsenic and iron release from ferrihydrite suspension under reducing conditions: a biogeochemical model"</p><p>http://www.geochemicaltransactions.com/content/8/1/12</p><p>Geochemical Transactions 2007;8():12-12.</p><p>Published online 29 Nov 2007</p><p>PMCID:PMC2246110.</p><p></p> Each group of 3 bars includes data of experiments AD1, CP1, AD5, CP5 after 1 day, 28 days and 63 days of As-2LFh incubation. Error bars represent the standard deviation of duplicated measurements