论文部分内容阅读
为探讨低水平环境铅暴露对新婚育龄夫妇和出生婴幼儿血铅水平的影响 ,在沈阳市 3个区选择新婚夫妇进行跟踪调查 ,采集女方孕前、孕中、产前的静脉血和分娩脐带血 ,同时孕前采集其丈夫一次静脉血。对其后出生的小孩跟踪至 30个月 ,每 6个月采集一次足跟末梢血 ,测定铅浓度。新婚夫妇孕前及女方孕中、产前和脐带血的血铅水平均是污染区显著的高于对照区 (P <0 0 5 )。二区≥ 2 0 μg/dl男性分别为 19 6 %和7 6 % ,女性分别为 10 7%和 4 0 %。产前及脐带血铅水平较之孕前有逐渐减低的趋势。测定 2 0 6例次婴幼儿不同时期的血铅表明 :随着出生月份的增加有逐渐增高的趋势。出生后不同月份婴幼儿的血铅浓度污染区高于对照区 ,但差异没有显著性。
In order to investigate the effect of low levels of lead exposure on blood lead levels in newly married couples and birth infants, new couples were selected to follow up in 3 districts of Shenyang City. Blood samples were collected before pregnancy, during pregnancy, and prenatally, and cord blood , While her husband collected a venous blood before pregnancy. Children born subsequently were followed up for 30 months and heel peripheral blood was collected every 6 months to determine the lead concentration. The blood lead levels of prenatal and prenatal pregnancies, prenatal and umbilical cord blood were significantly higher in the contaminated area than in the control area (P <0.05). Men in the District 2 ≥ 20 μg / dl were 19 6% and 76% respectively, while those in the women were 10 7% and 40% respectively. Prenatal and umbilical cord blood lead than before pregnancy, a gradual decrease in the trend. Blood samples from 206 infants at different times showed that the blood lead increased gradually with the birth month. The levels of blood lead contamination in infants and young children at different months after birth were higher than those in the control group, but the differences were insignificant.