铅是对人体有害的重金属元素,它不但普遍应用于工业、交通等许多领域,而且还普遍存在于自然界中,即使正常人群中的儿童,也不可避免地会受到铅污染的影响。人们往往只知道铅是对身体有害的东西,但对其有何危害及危害程度却知之甚少。 铅对机体的损害是广泛的,多系统的。由于儿童 Lead is a heavy metal element that is harmful to human body. It is widely used in many fields such as industry and transportation, and is widespread in nature. Even children in the normal population are inevitably affected by lead pollution. People often only know that lead is harmful to the body, but little is known about the harm and harm it causes. Lead damage to the body is extensive and multi-system. Due to children