Tolyltriazole (TTA) is one of the contaminants detected in groundwater near major airports, necessitating further investigation into the fate and effects of this chemical. This study examined the impact of TTA on African catfish ( Clarias gariepinus ) and explored Chlorella vulgaris as a bioremediation agent. Five groups of fish were established, including four treatment groups and a control group: low-dose TTA (1.1 µg/L) grou...