长期暴露于较高浓度的重金属锰、铅 ,均可造成包括中枢神经系统在内的损害。尽管管理毒理学的危险度评价推测使用ＭＭＴ代替四乙基铅 ,环境中锰含量增加不会造成目前技术方法可检查到的机体损害 ,但也有不少研究结果表明在一定条件下 ,如铁、镁、锌、硒缺乏 ,锰、铅联合作用[1] Long-term exposure to higher concentrations of manganese, lead, can cause damage, including the central nervous system. Although management toxicology risk assessment speculates that the use of MMT instead of tetraethyl lead, environmental manganese content increases will not cause any detectable body damage by the current technical methods, but many studies have shown that under certain conditions, such as iron, Magnesium, zinc, selenium deficiency, manganese, lead joint effects [1]