highly significantp < 0.0001
The pairwise comparisons between concentrations in front of and behind the filter unit revealed highly significant differences for all microbiological parameters ( p < 0.0001, Wilcoxon Rank Sum Test).
The pairwise comparisons between concentrations in front of and behind the filter unit revealed highly significant differences for all microbiological parameters ( p < 0.0001, Wilcoxon Rank Sum Test).