The conclusion is that the traffic pollutant has the genetic toxicity effect on mice,while the root juice of Brassica rapa has the antagonistic action on them.

• 结论是交通性污染物对小鼠具有明显的遗传毒性效应;芜菁块根汁对交通性污染物引起小鼠遗传毒性效应具有显著的拮抗效应.