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. Author manuscript; available in PMC: 2019 Apr 15.
Published in final edited form as: Sci Total Environ. 2017 Nov 1;621:939–947. doi: 10.1016/j.scitotenv.2017.10.154

Figure 2.

Figure 2

a) The abundance of bacterial 16S rRNA gene (closed circle) and 16S rRNA (open circle) in air samples collected by Button sampler and BioSampler simultaneously in an outdoor environment for two hours on three different days in summer (left) and five different days in late winter/early spring (right). The paired 16S rRNA gene and 16S rRNA data points are aligned vertically and positioned on the x-axis in order of sampling date. b) The 16S rRNA:16S rRNA gene ratio of bioaerosol samples collected by Button sampler and BioSampler simultaneously in an outdoor environment for two hours on three different days in summer (left) and five different days in late winter/early spring (right). The bars are averages and error bars show one standard deviation.