JEQ -- Steinman et al. 33 (6): 2040 Figure IG4

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Fig. 4. Top panel: concentration of NaOH–P_i (Fe/Al-bound P) in Spring Lake sediments. Bottom panel: Concentration of HCl–P_i (Ca/Mg-bound P) in Spring Lake sediments. O₂ = aerobic treatment; N₂ = anaerobic treatment; T = alum; C = control. Data are means (n = 3) ± 1 SD. Results from the ANOVA are presented in upper right corner of each panel.