Figure 4. Light micrographs of histological sections of kidney taken from fish L. rohita exposed to municipal wastewater concentrations for exposure durations of 15 (A; 35.4%), 30 (B; 17.7%, C; 26.6%), 60 (D; 26.6%, E; 35.4%) days, and recovery experiments of 60 days (F; 35.4%). The histopathological alterations were marked by () occlusion of tubular lumen; () hyaline droplet degeneration; () dilation of glomerular capillaries; () reduction of Bowman's space; () melanomacrophage centers; () nuclear hypertrophy; () cellular hypertrophy; () cytoplasmic vacuolation in the interrenal cells; () necrosis. Magnification 100×.