Antibiotic resistant gene

Prevalence (%) of ARG in

Secondary effluent

(n = 50)

Tertiary effluent UV

(n = 25)

Tertiary effluent Chlorine

(n = 25)

tet A

44%

52%

25%

tet b

88%

74%

5%

ampC

100%

100%

50%

Bla SHV

28%

83%

10%