铅是一种具有强烈神经毒性的重金属元素,而儿童的大脑正处于快速发育阶段,对铅毒特别敏感。即使儿童是处在极低水平的铅环境中,也会造成智力下降和行为异常。要解决铅对儿童健康的危害,最好的办法是彻底消除环境中的铅污染。例如,1997年在北京、上海等大都市,推广使用无铅汽油, Lead is a highly toxic heavy metal element, while children’s brains are in rapid development and are particularly susceptible to lead poisoning. Even if children are in a very low-level lead environment, they can cause mental decline and behavioral disorders. The best way to deal with the harmful effects of lead on children’s health is to completely eliminate lead pollution in the environment. For example, in Beijing, Shanghai and other major cities in 1997, the promotion of the use of unleaded petrol,