Fig. 3
From: Performance evaluation of high-volume electret filter air samplers in aerosol microbiome research
Total DNA and bacterial 16S rRNA gene copy yields. Total DNA and bacterial 16S rRNA gene copy yields in outdoor air samples (left panels), and total DNA yield from subway air samples (right panel). Total DNA yield was expressed as picograms per cubic meter of air. Bacterial 16S rRNA gene copy yield was expressed as bacterial 16S rRNA gene copies per cubic meter of air. Jittered data points, overlain the boxplots, are color coded by sample pair