Fig. 3
From: Effect of PM2.5 exposure on susceptibility to allergic asthma in elderly rats treated with allergens
Effects of PM2.5 exposure on lung injury in elderly rats. Optical three images of H&E-stained lung tissues for each group are shown, and histopathological changes were observed in the different groups obtained from three different rats (n = 3). The green arrows represent macrophages, and the red arrows represent bleeding. (200 × magnification, scale bars = 100 μm).
