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Fig. 2 | Particle and Fibre Toxicology

Fig. 2

From: Prolonged exposure to traffic-related particulate matter and gaseous pollutants implicate distinct molecular mechanisms of lung injury in rats

Fig. 2

Histological images of rat lung tissues. a, b, and c are representative images of the 3 M-CTL, 3 M-GAS, and 3 M-PM1 groups, whereas d, e, and f are representative images of the 6 M-CTL, 6 M-GAS, and 6 M-PM1 groups, respectively. The images show the alveoli (left panel) and airway (right panel) tissues. Bars in the airway figures indicate the thickness of the airway wall. Black arrowheads point to the infiltration of immune cells within the alveolar and bronchial walls. The black arrow in c indicates damage within the bronchial wall

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