Microalgal Exposure to Human Antibiotics Triggers Similarities in Growth and Photosynthetic Responses

The discharge of pharmaceuticals via wastewater into the environment is a great concern due to constant threat posed photosynthetic organisms since they are vital for sustenance aquatic food web. To compare and growth responses green algae human antibiotics, Raphidocelis subcapitata Chlorella vulgaris were exposed erythromycin sulfamethoxazole 96 h. A much higher sensitivity was shown by antibiotics. Although more acutely toxic photosynthesis (EC50, 24.6 μg/L; EC10, 14.6 μg/L) than 160 27 in Raphidocelis, chronic effects terms EC10 alike. Interestingly, exhibited similar toxicity towards with acute parameters >2000 260 μg/L Raphidocelis; EC50, 47,900 19,100 Chlorella) consonance those 340 47,500 13,400 Chlorella). Growth strongly inhibited this study at environmentally relevant concentrations erythromycin. findings from demonstrated that yield reliable indicator thus, may be useful as an alternative approach assessing