fig6

Figure 6. PM_2.5 and O₃ exposure characteristics of the exposure group and features and liver pathology of SD rats. (A) Exposure characteristics of PM_2.5 and O₃; (B) Characteristics of SD rats, including body weight, liver weight, liver organ coefficient, liver lipid content, serum LDL-C, HDL-C, TG, and TC concentrations. *P < 0.05; (C) H&E staining results of SD rat liver. PM: Particulate matter; O₃: ozone; SD: Sprague-Dawley; LDL-C: low-density lipoprotein cholesterol; HDL-C: high-density lipoprotein cholesterol; TG: triglycerides; TC: total cholesterol; H&E: hematoxylin-eosin staining.