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. 2016 Aug 4;58(5):413–424. doi: 10.1539/joh.15-0287-OA

Fig. S.3.

Fig. S.3.

Ni-smelting fumes effect on morphological by hematoxylin-eosin staining. Embedded sections were exposed to different concentration of Ni-smelting fumes. The experiment was repeated three times. A: Negative control. B: Exposed to 0.5 mg/kg Ni-smelting fumes per rat every fifteen days for a total of twice. Alveolar wall capillaries were expanded and congested. C: Exposed to 1.0 mg/kg Ni-smelting fumes per rat every fifteen days for a total of twice. Alveolar wall capillaries were more expanded and congested. D: Exposed to 2.0 mg/kg Ni-smelting fumes per rat every fifteen days for a total of twice. There were a small number of red blood cells in the alveolar cavity, and the alveolar septum was widened. E: Exposed to 3.0 mg/kg Ni-smelting fumes per rat every fifteen days for a total of twice. Alveolar wall capillaries were expanded and congested. Infiltration by neutrophils granulocytes and lymphocytes around the blood vessels was observed.