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测定了１５名长时间从事低剂量铅接触的女工血铅、铜、锌、铁、锰及铜锌超氧化物歧化酶（Ｃｕ－Ｚｎ ＳＯＤ）活性、脂质过氧化产物二级降解物丙二醛（ＭＤＡ）含量，并以同年龄组同地区非铅暴露人群作对照。结果显示：暴露组的血铅、铜、ＭＤＡ含量高于对照组（Ｐ＜０．０５）；而血锌、 Ｃｕ－Ｚｎ ＳＯＤ活性低于对照组（Ｐ＜ ０．０５）；血 Ｍｎ、 Ｆｅ两组无明显差异（ Ｐ＞ ０．０５）。提示：长期接触低浓度铅可诱发体内脂质过氧化，同时引起微量元素含量改变。
The lead, copper, zinc, iron, manganese and copper-zinc superoxide dismutase (Cu-Zn SOD) activity of 15 female lead workers who were exposed to low doses of lead for a long time were determined. The secondary metabolites of lipid peroxidation product, Aldehyde (MDA) content, and in the same age group with non-lead exposed population as a control. The results showed that the contents of lead, copper and MDA in the exposed group were higher than those in the control group (P <0.05), while the activities of Zinc and Cu-Zn SOD were lower than those in the control group (P <0.05) There was no significant difference between the two groups (P> 0.05). Tip: Long-term exposure to low concentrations of lead can induce lipid peroxidation in the body, while causing changes in trace elements.