LIU Ying,YIN Hongling,MA Chengqi,et al.Content Characteristices of Heavy Metals in Hair of Different Kinds of People in a Community of Chengdu[J].Journal of Chengdu University of Information Technology,2024,39(02):255-262.[doi:10.16836/j.cnki.jcuit.2024.02.018]
成都市某社区不同类别人群头发中重金属的含量特征
- Title:
- Content Characteristices of Heavy Metals in Hair of Different Kinds of People in a Community of Chengdu
- 文章编号:
- 2096-1618(2024)02-0255-08
- Keywords:
- hair; heavy metal; content characteristics; Chengdu; pollution index
- 分类号:
- X171.5
- 文献标志码:
- A
- 摘要:
- 采用ICP-MS测定成都市某社区33位居民头发中Cr、Mn、Co、Ni、Cu、As、Mo、Cd、Sb、Tl、Pb共11种重金属的含量,分析其分布特征及主要影响因素。与相关文献推荐的正常范围值相比,研究区居民未受Tl污染。头发中 Cu、As、Sb及Pb有超标现象,超标率分别为15.2%、3.0%、6.1%及15.2%。其中1位居民的发As含量(2.35 μg/g)是推荐正常值范围限值的2.8倍,与其在工厂中的职业暴露有关; 其次是接触电子产品较多的6号居民(0.52 μg/g)与16号居民(0.5 μg/g)发As含量明显高于其他居民。仅有1位食堂职工的发Cu含量超过推荐范围,主要与其职业/生活习惯有关。统计检验表明,只有Mo含量与性别相关(P<0.05)。Mn、Co、As、Tl含量在各年龄组间差异极显著(P<0.01)。抽烟人群头发中重金属含量与不抽烟人群无显著差别。相关性分析发现多种重金属间存在正相关关系。Co的单项累积污染指数在男女性中均为最高。男性的综合累积污染指数(3.12)低于女性(5.30)。
- Abstract:
- The contents of 11 heavy metals(Cr, Mn, Co, Ni, Cu, As, Mo, Cd, Sb, Tl and Pb)in hair of 33 residents from a community in Chengdu were determined by ICP-MS, and their distribution characteristics and main influencing factors were analyzed in this paper. Compared with the normal range recommended by relevant literature, residents in this study area were not contaminated by Tl, but the Cu, As, Sb and Pb contents exceeded the standard, and the rates were 15.2%, 3.0%, 6.1% and 15.2%, respectively. One of the residents had 2.8 times hair As levels(2.35 μg/g)the recommended normal range, which was associated with occupational exposure in the factory. The As contents of residents No.6(0.52 μg/g)and No.16(0.5 μg/g)exposed to electronic products were significantly higher than that of other residents. Only one canteen worker’s hair Cu content exceeded the recommended range, which was related to his occupation/living habits. Statistical test shows that only Mo content was correlated with sex(P<0.05). The contents of Mn, Co, As and Tl in different age groups were significantly different(P<0.01). There was no significant difference in the heavy metals content in the hair of smokers and non-smokers. Correlation analysis showed that there were positive correlations among various heavy metals. The singlecumulative pollution index of Co was the highest in both males and females. The cumulative pollution index of men(3.12)was lower than that of women(5.30).
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备注/Memo
收稿日期:2022-07-19
通信作者:印红玲.E-mail:yhl@cuit.edu.cn