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本文对包头市区和郊区181名12～13岁暴露于不同浓度大气铅的健康儿童体内生物学指标进行测定。结果表明暴露组与对照组大气铅的日平均浓度有显著性差异(P<0.05)。尿铅、发铅暴露组与对照组亦有显著性差异(P<0.05)。两者尿δ-ALA的差异不显著(P>0.05)。随大气铅浓度的增加,发铅、尿铅有增高的趋势。
In this paper, biological indicators of 181 healthy children aged 12 ~ 13 years exposed to different concentrations of lead in the urban and suburban areas of Baotou were determined. The results showed that there was a significant difference (P <0.05) in the daily average concentrations of lead in exposed and control groups. Urinary lead, hair lead exposure group and the control group also had significant difference (P <0.05). There was no significant difference in urinary δ-ALA between the two groups (P> 0.05). With the increase of atmospheric lead concentration, hair lead, urine lead increased.