(A) Concentrations of targeted antibiotics in landfill leachates (log10-transformed ng/L) on a global scale. Dots in different colors represented the different countries, including China, Italy, Niger, Singapore, Spain, Turkey, and the USA. The targeted landfills were categorized into young (<10 yr), intermediate, and mature (>20 yr) groups. (B) The generation of MSW and total concentrations of antibiotics. The MSW generation amount (million tons/yr) in each region/province of China was proportional to the opacity of blue color; the total concentrations (sum of geometric means (GM)) of the antibiotics in landfill leachates were calculated based on a region/province scale. (C) The emission fluxes of each antibiotics belonging to six major classes were calculated based on a national scale (China).