国内外研究〔1〕报道,宫内铅暴露对出生后儿童的认知能力、学习记忆能力及神经系统发育均有一定的不良影响,一些发达国家视儿童铅中毒为首要的儿童环境健康问题。很多学者〔2〕致力于儿童铅中毒的预防及干预研究,他们认为预防铅中毒,除了环境干预,如推广无铅汽油,杜绝使用含铅 Domestic and foreign studies [1] reported that intrauterine lead exposure on children’s cognitive ability, learning and memory and nervous system development have some adverse effects, some developed countries as children’s lead poisoning as the primary environmental health problems of children. Many scholars [2] committed to the prevention and intervention of lead poisoning in children, they believe that the prevention of lead poisoning, in addition to environmental intervention, such as the promotion of unleaded gasoline, to eliminate the use of lead