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为了解新生儿脐带血血铅浓度及其环境影响因素，在南通市收集脐带血标本１３９份。用火焰原子吸收法测定血铅浓度，并以访谈式问卷调查的形式对相应１３９名产妇进行环境因素的调查，用多因素统计分析的方法，分析对脐血铅水平有影响的环境因素。结果表明，１３９例脐带血血铅浓度呈正偏态分布，范围０．０１２９～０．４６６９μｇ／ｍＬ，中位数为０．１４２７μｇ／ｍＬ，脐血铅水平超过目前认为安全界限（０．１μｇ／ｍＬ）的占７３．４％；高龄孕妇、孕妇被动吸烟、饮茶、用陶瓷杯饮水、上下班途中时间长是胎儿期铅暴露的危险因素，而孕妇多食豆制品为保护性因子
In order to understand neonatal umbilical cord blood lead concentration and its environmental factors, cord blood samples collected in Nantong 139. The concentration of lead in blood was determined by flame atomic absorption spectrometry. The environmental factors of 139 maternal women were investigated by interview questionnaire. The environmental factors influencing lead levels in umbilical cord blood were analyzed by multivariate statistical analysis. The results showed that the blood lead levels of 139 cases of umbilical cord blood showed a positive skewed distribution with a range of 0.0129-0.4669μg / mL with a median of 0.1427μg / mL. Cord blood lead levels exceeded the currently considered safety margin of 0.1μg / mL) accounted for 73.4%; elderly pregnant women, pregnant women passive smoking, drinking tea, drinking water with a ceramic cup, work on the road a long time is a risk factor for fetal lead exposure, while pregnant women eat soy products as a protective factor