作者研究了接触苯(工作场所空气中苯蒸气浓度300±10毫克/立方米)的85名孕妇,年龄20～40岁,工龄1—22年。分为两组,第一组46名为人工流产者,于静脉采血的同时收取胚胎测定含苯量。第二组39名,于分婉期从静脉和脐带采血测定苯含量.此外还用30支大鼠先在苯浓度 The authors studied 85 pregnant women exposed to benzene (300 ± 10 mg / m3 of benzene vapor in the air in the workplace) aged 20 to 40 years and worked between 1 and 22 years of age. Divided into two groups, the first group of 46 were induced abortion, intravenous blood collected at the same time containing the determination of benzene content of embryos. The second group of 39, in the meantime from the venous and umbilical cord blood benzene content determination. In addition to the first 30 rats with benzene concentration