VZJ -- Helmke et al. 3 (3): 1050 Figure IG5

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Fig. 5. Standard boxplots (Helsel and Hirsch, 1992) of total porosity ( ${theta}$ _T) and effective diffusive porosity ( ${theta}$ _De) for Br^–, PFBA, and PIPES. Median values of ${theta}$ _De are significantly different from each other and from ${theta}$ _T ( ${alpha}$ = 0.05) and decrease with increasing molecular weight of the tracer.