Table 3.

Different antibiotics and the respective ARGs found in the environment

Antibiotics classes	Type of ARGs	Detected environment
Tetracyclines	tetA, tetA(C), tetB, tetC, tetE, tetF, tetH, tetK, tetL, tetM, tetN, tetO, tetQ, tetS	Sewage, sludge, surface water, fish ponds, natural water bodies (Cheng et al. 2020), activated sludge (Bengtsson-Palme et al. 2016; Zhang et al. 2016; Jiao et al. 2018)
Macrolides	mphA, mphB, ereA2, ermA, ermB, ermF, ermO, mefA	Natural water bodies (Cheng et al. 2020), influent, activated sludge, effluent (Bengtsson-Palme et al. 2016; Jiao et al. 2018; Sabri et al. 2020)
Sulfonamides and trimethoprim	sulI, sulII, sulIII, dfrA, dfrB	Natural water bodies (Oberoi et al. 2019), influent, activated sludge, effluent (Bengtsson-Palme et al. 2016; Neudorf et al. 2017; Sabri et al. 2020)
Beta-lactams	tem, shv, ctx, ampR, cit, ges, nps, sme, veb	Various environment (Oberoi et al. 2019), influent, activated sludge, effluent (Zhang and Li 2011, Yang et al. 2013, Biswal et al. 2014, Amador et al. 2015)
Quinolones	gyr(A, B), qnrA, par(C, E), qnrB, qnrC, qnrS	Natural water bodies (Oberoi et al. 2019), influent, effluent, activated sludge (Marti et al. 2013; Xu et al. 2015)
Chloramphenicols	catI, catII	Natural water bodies (Oberoi et al. 2019)
Glycopepetides	vanA, vanB, vanC1, vanC2, vanC3, vanD	Natural water bodies (Oberoi et al. 2019)
Multidrug efflux pump genes	amrB, mdtG, mdtH, mexD, qacE∆1	Influent, activated sludge, effluent (Yang et al. 2013, 2014; Jiao et al. 2018)