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首页> 外文期刊>Science of the total environment >Contamination and risk assessment (based on bioaccessibility via ingestion and inhalation) of metal(loid)s in outdoor and indoor particles from urban centers of Guangzhou, China
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Contamination and risk assessment (based on bioaccessibility via ingestion and inhalation) of metal(loid)s in outdoor and indoor particles from urban centers of Guangzhou, China

机译：中国广州市中心城市室内外颗粒物中金属（金属）的污染和风险评估（基于通过摄入和吸入的生物可及性）

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摘要

Road dust, household air-conditioning (AC) filter dust and PM_(2.5) were collected to investigate the contamination of metal(loid)s (Cr, Mn, Ni, Cu, Zn, As, Cd, Sn, Sb, Hg and Pb) in outdoor and indoor urban environments of Guangzhou. Zinc was found to be the most abundant element in road dust and household PM_(2.5), while the concentration of Pb was the highest in AC filter dust. Enrichment factor (EF) was used to assess the influence of human activity on the contamination of these metal(loid)s. Ingestion and inhalation were the two exposure pathways applied for risk assessment. Physiologically based extraction test (PBET) was used to estimate the oral bioaccessibilities of metal(loid)s in road dust and AC filter dust. Respiratory bioaccessible fraction of metal(loid)s via household PM_(2.5) was extracted with lung simulating solution. Household AC filter dust was more hazardous to human health than road dust, especially to children. Arsenic was found to be the most risky element based on the risk assessment.
机译：收集道路灰尘，家用空调过滤器灰尘和PM_（2.5），以调查金属（铅，锰，镍，铜，锌，砷，镉，锡，锑，汞和汞）的污染。 Pb）在广州的室外和室内城市环境中。锌是道路灰尘和家庭PM_（2.5）中含量最高的元素，而AC过滤器灰尘中Pb的含量最高。富集因子（EF）用于评估人类活动对这些金属（金属）污染的影响。摄入和吸入是用于风险评估的两种接触途径。基于生理学的提取试验（PBET）用于评估道路灰尘和交流过滤器灰尘中金属（胶体）的口服生物利用度。用肺模拟溶液提取通过家用PM_（2.5）的呼吸性金属（金属）s级分。家用交流过滤器粉尘比道路粉尘对人体健康的危害更大，尤其是对儿童而言。根据风险评估，发现砷是最危险的元素。

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  • 来源
    《Science of the total environment》 |2014年第1期|117-124|共8页
  • 作者

    Minjuan Huang; Wei Wang; Chuen Yu Chan; Kwai Chung Cheung; Yu Bong Man; Xuemei Wang; Ming Hung Wong;

  • 作者单位

    Croucher Institute for Environmental Sciences and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong China ,Faculty of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Hong Kong, China;

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

    Faculty of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Hong Kong, China;

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

    Croucher Institute for Environmental Sciences and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong China ,Department of Science and Environmental Studies, The Hong Kong Institute of Education, Tax Po, Hong Kong, China;

    Faculty of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Hong Kong, China;

    Croucher Institute for Environmental Sciences and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong China ,Department of Science and Environmental Studies, The Hong Kong Institute of Education, Tax Po, Hong Kong, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metal(loid)s; Oral bioaccessibility; Respiratory bioaccessibility; Daily intake; Risk assessment;

    机译：金属（类）;口服生物可及性;呼吸生物可及性;每日摄入量;风险评估;

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