随着现代工业交通的发展,铅对环境的污染日趋严重,小儿铅中毒的发病率也逐渐增高,对儿童健康构成较大威胁。美国最近的统计资料表明,全美约有300～400万儿童已经受到铅毒性作用的影响,国内研究亦证明,此已成为阻碍儿童生长发育不可忽视的重要因素。因此对该症认识和了解有积极的现实意义。 With the development of modern industrial transportation, the pollution of lead to the environment is becoming more and more serious. The incidence of lead poisoning in children also gradually increases, posing a greater threat to children’s health. Recent statistics from the United States show that about 3 to 4 million children in the United States have been affected by lead toxicity. Domestic research has also proved that this has become an important factor that can hinder the growth and development of children. Therefore, the understanding and understanding of the disease has a positive and practical significance.