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随着城市化和工业化的发展 ,环境中低浓度铅污染对儿童智力发育的影响日益受到人们的关注。目前已经证实铅能危害神经系统 ,主要影响未成熟脑的发育及学习记忆功能。而儿童在生长发育的各个时期均可受到铅的威胁 ,因此为进一步明确学习记忆能力在发育的不同时期对铅损伤的敏感
With the development of urbanization and industrialization, the impact of low concentrations of lead pollution in the environment on the intellectual development of children has drawn increasing attention. It has been confirmed that lead can endanger the nervous system, mainly affecting immature brain development and learning and memory. However, children are threatened by lead during various periods of growth and development. Therefore, in order to further clarify the sensitivity of learning and memory ability to lead injury at different stages of development