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目的 为探讨哈尔滨市学龄前儿童血铅水平以及其对幼儿生长发育情况的影响。方法 选择310名4～7岁学龄前儿童,测定其身高、体重,并采集空腹血样,用电感耦合等离子体质谱仪测定血铅水平。以CDC 1991年制定的儿童铅中毒标准:血铅水平≥100μg/L为判定铅中毒的依据。结果 本次调查儿童铅中毒率为14.9％;4～5岁儿童血铅水平与其身高、体重存在显著负相关,相关系数:r体重=-0.158,P<0.05;r身高=-0.242,P<0.01,6～7岁组儿童血铅水平与身高体重无显著相关。结论 铅对5岁以下儿童的生长发育影响较大。
Objective To investigate the blood lead levels of preschool children in Harbin and their effects on the growth and development of young children. Methods 310 preschool children aged from 4 to 7 years old were selected for determination of their height and weight. Fasting blood samples were collected and blood lead levels were determined by inductively coupled plasma mass spectrometry. To CDC in 1991 developed children’s lead poisoning standards: blood lead levels ≥ 100μg / L to determine the basis for lead poisoning. Results The lead poisoning rate in children was 14.9% in this survey. There was a significant negative correlation between blood lead level and height and weight in children aged 4 ~ 5 years. The correlation coefficient was r = -0.158, P <0.05; r = -0.242, P < There was no significant correlation between the level of blood lead and height and weight of 0.01 and 6-7 years old children. Conclusion Lead has a significant impact on the growth and development of children under 5 years of age.