作者检查了45名铅作业工人,其作业场所空气中铅含量大多超过最高容许浓度。结果,绝大多数铅作业工人的血铅浓度都超过正常值(1.9μmol/l),即达到明显的异常血铅浓度,平均为2.8±0.7μmol/l。对照组血铅浓度基本正常,仅有2例受检者略高于正常范围。对照组血铅浓度的平均值为1.3±0.3μmol/l,比HAAG及WHO调查资料的无铅负荷居民组的0.7μmol/l略高。有44％接铅工人,其尿中δ-ALA浓度 The authors examined 45 lead workers, whose lead content in the workplace mostly exceeded the maximum allowable concentration. As a result, most lead workers exceeded the normal level of blood lead (1.9 μmol / l), which resulted in a significant abnormal blood lead concentration of 2.8 ± 0.7 μmol / l. The control group, blood lead levels were normal, only 2 subjects slightly higher than the normal range. The mean blood lead level in the control group was 1.3 ± 0.3 μmol / l, slightly higher than the 0.7 μmol / l lead-free load resident group in the HAAG and WHO survey data. 44% of workers received lead, their urinary δ-ALA concentrations