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目的了解本地区儿童血铅水平和儿童铅中毒的分布状态,为预防和诊疗儿童铅中毒提供科学依据。方法选择2007—2010年来我院就诊年龄在10岁以下的儿童及入幼儿园前体检和在读儿童共3 183例,采用原子吸收光谱法测定血铅水平,对测量数据进行相关的统计学处理。结果儿童血铅总体均值为70.74μg/L,其中正常对照组638例儿童血铅均值为68.32μg/L,2 545例门诊就诊患儿组血铅均值为73.16μg/L。患儿组血铅稍高于正常对照组;男童血铅均值为77.64μg/L,高于女童(68.82μg/L)。按四个年龄组[0～(岁),1～(岁),3～(岁),6～10岁共四个年龄组]比较可以看出,随着年龄的增长血铅呈增加的趋势。结论儿童铅中毒呈上升趋势,应重视儿童高血铅的综合防治,定期监测,预防铅污染和中毒。
Objective To understand the distribution of blood lead levels and lead poisoning in children in this area and provide a scientific basis for the prevention and treatment of childhood lead poisoning. Methods A total of 3 183 pre-kindergarten and preschool children from 2007 to 2010 were enrolled in this study. Blood lead levels were measured by atomic absorption spectrometry. Relevant statistics were performed on the measured data. Results The mean level of blood lead in children was 70.74μg / L. The average blood lead level was 68.32μg / L in 638 children in the normal control group and 73.16μg / L in 2 545 outpatients. The blood lead of children was slightly higher than that of normal control group. The mean blood lead of boys was 77.64μg / L, higher than that of girls (68.82μg / L). According to the comparison of four age groups [0 ~ (old), 1 ~ (old), 3 ~ (old), 6 ~ 10 years old), we can see that the blood lead increased with the increase of age . Conclusion Childhood lead poisoning is on the rise. The comprehensive prevention and treatment of high blood lead in children should be emphasized, and regular monitoring and prevention of lead pollution and poisoning should be carried out.