Fig. 3From: Filter forensics: microbiota recovery from residential HVAC filtersBacterial source environment attribution for (a) human indicator bacterial families used in Meadows et al. [71], (b) skin indicator bacterial genera used in Barberan et al. [87], and (c) human stool indicator genera used in Barberan et al. [87]. The y-axis represents relative abundance of reads for a given sampleBack to article page