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首页> 外文期刊>Ecotoxicology and Environmental Safety >Mercury levels in road dust and household TSP/PM2.5 related to concentrations in hair in Guangzhou, China
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Mercury levels in road dust and household TSP/PM2.5 related to concentrations in hair in Guangzhou, China

机译：中国广州道路灰尘和家用TSP / PM2.5中的汞含量与头发中的浓度有关

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摘要

Road dust, household total suspended participate matters (TSP) and PM2.5 were collected in urban area of Guangzhou, south of China, to investigate the concentrations of total mercury (THg) and methyl mercury (MeHg). The household PM2.5 concentrations varied between 16.2 and 623μg/m~3. The average PM2.5 level (174 μg/m~3) from all of the locations exceeded 24-h concentration from WHO air quality guideline The average concentrations of THg and MeHg were: 235 μg/kg and 0.392 μg/kg in road dust, 600 ug/kg and 1.49 μg/kg in TSP; 1006 μg/kg (104 pg/m~3) and 1.40 μg/kg (0.134 pg/m~3) in PM2.5. Risk assessment showed that the Hazardous quotients (HQs) of exposure to Hg and MeHg via road dust and TSP were less than 1, indicating that no adverse risk was manifested. Ingestion of dust was found to constitute a relatively minor pathway of Guangzhou residents' exposure to Hg. Furthermore, human hair samples from 88 Guangzhou citizens were also analyzed to investigate the mercury accumulation in human body in Guangzhou. The average concentrations of THg and MeHg in human hair samples were 869 ±831 μg/kg and 104 + 108μg/kg respectively. However, no significant correlations of the mercury species were noted between human hair and road dust, TSP and PM2.5.
机译：在中国南方的广州市区，收集了道路扬尘，家庭总悬浮物（TSP）和PM2.5，以调查总汞（THg）和甲基汞（MeHg）的浓度。家庭PM2.5浓度在16.2和623μg/ m〜3之间变化。所有地点的平均PM2.5浓度（174μg/ m〜3）超过了WHO空气质量准则的24小时浓度。道路粉尘中THg和MeHg的平均浓度分别为235μg/ kg和0.392μg/ kg ，TSP中的600 ug / kg和1.49μg/ kg；在PM2.5中为1006μg/ kg（104 pg / m〜3）和1.40μg/ kg（0.134 pg / m〜3）。风险评估显示，通过道路扬尘和TSP暴露于Hg和MeHg的危险商（HQs）小于1，表明没有不良反应迹象。发现灰尘的摄入是广州居民接触汞的相对较小的途径。此外，还对来自88位广州市民的人发样本进行了分析，以调查广州人体内汞的积累。人发样品中THg和MeHg的平均浓度分别为869±831μg/ kg和104 +108μg/ kg。但是，在人的头发和道路灰尘，TSP和PM2.5之间没有发现汞种类的显着相关性。

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  • 来源
    《Ecotoxicology and Environmental Safety》 |2012年第2012期|p.27-35|共9页
  • 作者

    Minjuan Huang; Wei Wang; Homan Leung; Chuen Yu Chan; Wing Keung Liu; Ming HungWong; Kwai Chung Cheung;

  • 作者单位

    Croucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China;

    Croucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China;

    Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China;

    Faculty of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China;

    School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, PR China;

    Croucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, PR China;

    Department of Applied Sciences, Hong Kong Institute of Vocational Education (Chai Wan), Vocational Training Council, Hong Kong, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mercury; household pm2.5; household tsp; road dust; human hair;

    机译：汞;家用pm2.5;家用茶匙;道路扬尘;人发;

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