Occurrence of the examined antibiotics in world’s rivers. Geographical distribution of sampling sites (red dots) in river water (A) and sediment (B). Number of the reported antibiotics in river water (C) and sediment (D) from different countries. Venn plot of the antibiotic types in river water (E) and sediment (F) from different continents (The abbreviations for the full names of antibiotics are given in Table S2).