(A) Re-analyzed abundance of antibiotic resistome in landfill leachate. The circle dots represented the outliers in the datasets (transcript per million reads, TPM). The colored and black squares indicated the data points and their mean values, respectively. (B) Heatmap of core antibiotic resistome, which contained the ARG subtypes that were detected in more than 50% of the sequencing samples (n=20). The relative abundance of core ARGs higher than 10⁴-TPM was annotated with asterisks.