Fig. 2

Comparison of bacterial community composition across PVC leachate and zinc treatments. a Stacked bar plot showing the relative abundance of bacterial orders which contribute > 1% relative abundance based on 16S rRNA amplicon data. b The set of bacterial genera observed to be significantly different between each treatment compared to the control using DESeq2 analysis (a = 0.01, p < 0.01), which contribute > 1% relative abundance. Shading indicates whether genera were significantly more abundant in the treatment or in the control (blue: lower in the treatment; orange: higher in the treatment). c Stacked bar plot indicating the relative abundance of photosynthetic community members in each sample, based on the analysis of cyanobacteria and plastid sequences from the 16S rRNA amplicon sequence analysis at day 6. For the 10% PVC treatment, only two replicates are shown as the third replicate for this treatment did not contain any cyanobacteria or plastid sequences