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目的调查山东某大学学生头发中重金属的含量及可能的影响因素。方法采集山东某大学116位大学生的头发样本,测定其中Pb、Cd、Cu、Zn的含量,并用统计分析的方法从性别、生源地及是否染发等方面分析影响头发中重金属元素含量的可能因素。结果样本中Pb含量平均值为8.99μg/g,Cd为0.44μg/g,Cu为8.87μg/g,Zn为50.49μg/g,其中Zn含量低于建议值,染发同学头发中的Pb含量明显高于非染发同学头发中的含量;男女生4种重金属元素含量差异不显著;不同生源地学生头发中Cu、Zn含量差异不显著,但来自淄博地区的学生头发样本中Cd、Pb含量均显著高于其他地区;城市生源学生头发中重金属含量高于农村生源学生,Pb、Cu、Zn 3种重金属在组间存在显著差异性。结论样本中4种重金属元素含量与正常值相比均未超标,但大学生存在缺Zn问题;性别、生源地(除淄博外)不是影响头发中重金属元素含量的可能因素;城市源或农村源是影响头发中Pb、Cu、Zn含量的可能因素;是否染发是影响头发中重金属元素含量Pb的可能因素,这进一步证实染发对人体健康有潜在危害。
Objective To investigate the content of heavy metals in the hair of a university student in Shandong Province and the possible influencing factors. Methods The hair samples of 116 college students from a university in Shandong Province were collected to determine the contents of Pb, Cd, Cu and Zn, and the possible factors influencing the content of heavy metal elements in hair were analyzed by statistical methods, such as sex, provenance and whether they were dyed or not. Results The average content of Pb in samples was 8.99μg / g, Cd was 0.44μg / g, Cu was 8.87μg / g, Zn was 50.49μg / g, and the content of Zn was lower than the recommended value. The contents of Cu, Zn in hair of students from different habitats were not significantly different, but the content of Cd and Pb in hair samples from students in Zibo were significantly higher than those in non-hair students Higher than other regions. The contents of heavy metals in hair of city students were higher than that of students in rural areas. There were significant differences among the three heavy metals in Pb, Cu and Zn groups. Conclusion The contents of four kinds of heavy metal elements in the samples were not overweight compared with the normal ones, but the students were deficient in Zn. The gender and source (except Zibo) were not the possible factors affecting the content of heavy metal elements in the hair. The source of the urban or rural areas was The possible factors affecting the content of Pb, Cu, Zn in the hair; whether the hair dye is the possible factor that affects the content of heavy metal elements in the hair, which further confirms that the hair dye is potentially harmful to human health.