The data suggest that EOC in PM_(2.5) could disturb the cell cycle through P53 route and induce apoptosis in Balb/c 3T3 cell.

• 提示PM2 5有机提取物可能通过P5 3途径引起Balb c 3T3细胞周期阻滞 ；并诱导细胞凋亡 .