Fig. 1From: Inhalable antibiotic resistomes emitted from hospitals: metagenomic insights into bacterial hosts, clinical relevance, and environmental risksa Relative abundance of airborne ARGs in hospital and urban ambient air PM2.5 samples in summer and winter. Eleven resistance types of ARGs were calculated as the major components of the resistome (> 99% of the total abundance). b The core resistome of PM2.5 contained 88 subtypes of ARGs, which occurred in more than 90% of the samples. The ARGs with relative abundance > − 2.0 log10(ARGs/16S rRNA gene) are annotated in red. c Bacterial taxa (species) classified using MetaPhlan3 were significantly correlated with the hospital PM2.5 resistome. d Percentage of bacterial genera attributable to two predominant environmental setting origins (%), namely terrestrial bio-matter/plants and human-associated waste (feces, sebum, saliva), as determined using SourceTracker2Back to article page