Figure 4: The recorded growth inhibition % measured as the reduction % of the chlorophyll-a content in algae # 1 (diamonds), # 2 (squares) and # 4 (triangles) after incubation in MSM supplemented with phenol (A), pyridine (B) and mixtures of phenol and pyridine (C) at increasing concentrations for 72 h at 28±2°C under continuous illumination (5000 lux) and agitation (150 rpm).