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The dynamic effects of single exposure to PM2.5 on oxidative stress in various tissues. Oxidative stress indicators were detected in lung, alveolar lavage fluid ,blood and vessel at 0, 0.5, 1, 6 and 24hrs. (A)The ROS levels (n=10). (B) MDA levels (n=10). (C) SOD levels (n=10). *P<0.05 compared with control group,**P<0.01 compared with control group, #P<0.05 compared with L-NAME group, # #P<0.01 compared with L-NAME group.
