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首页> 外文期刊>Building and Environment >Toxic volatile organic compounds in 20 homes in Shanghai: Concentrations, inhalation health risks, and the impacts of household air cleaning
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Toxic volatile organic compounds in 20 homes in Shanghai: Concentrations, inhalation health risks, and the impacts of household air cleaning

机译：上海市20户家庭中的有毒挥发性有机化合物：浓度，吸入健康风险以及家庭空气清洁的影响

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摘要

Exposure to VOCs causes a variety of adverse health effects, with much of the exposure occurring at home during sleep. The use of an air cleaner maybe an effective and convenient way to reduce associated exposures and health risks. Studies about the impacts of air cleaner on VOCs are limited. The main objective of this paper was to assess the inhalation health risks that toxic VOCs present during nighttime sleep and to estimate the removal effectiveness of an indoor air cleaner on these VOCs. Asthmatic children, who are especially vulnerable to the detrimental effects of air pollutants, were recruited and the VOC concentrations in their bedrooms were measured during two periods -once with a true air cleaner and once with a sham air cleaner. Among the toxic VOCs quantified, formaldehyde, acetaldehyde and toluene had the highest concentrations (median: 18.0, 14.0 and 12.1 mu g/m(3), respectively) in the bedrooms. Health risk assessments were conducted to identify compounds of greatest concern. During nighttime sleep, 7 VOCs presented inhalation cancer risk above the acceptable risk (1 x 10(-6)), 4 VOCs exceeded the non-cancer risk threshold (1) in most of the homes tested. The results indicate that the use of an air cleaner in residences may lead to significant reductions in VOC concentrations indoors, but even with this reduction, the associated health risks are still of concern. This study highlights the need for reductions in toxic VOCs at home, points to the imminent need for improvements in control of VOC sources.
机译：接触VOC会导致多种不利的健康影响，其中大部分接触是在睡眠期间在家中发生的。使用空气滤清器可能是减少相关暴露和健康风险的有效便捷的方法。关于空气滤清器对挥发性有机化合物的影响的研究是有限的。本文的主要目的是评估夜间睡眠中存在的有毒VOC的吸入健康风险，并评估室内空气净化器对这些VOC的去除效果。招募了特别容易受到空气污染物有害影响的哮喘儿童，并在两个时期内测量了他们卧室中VOC的浓度-一次使用真正的空气净化器，一次使用假空气净化器。在量化的有毒挥发性有机化合物中，卧室中的甲醛，乙醛和甲苯的浓度最高（分别为中位数：18.0、14.0和12.1μg / m（3））。进行了健康风险评估，以确定最关注的化合物。在夜间睡眠期间，在大多数测试房屋中，有7种VOC呈现出吸入癌症的危险高于可接受的风险（1 x 10（-6）），4种VOC超出了非癌症的危险阈值（1）。结果表明，在住宅中使用空气滤清器可能会导致室内VOC浓度的显着降低，但是即使如此降低，相关的健康风险仍然值得关注。这项研究强调了在家中减少有毒VOC的必要性，这表明迫切需要改善VOC来源的控制。

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  • 来源
    《Building and Environment》 |2019年第6期|309-318|共10页
  • 作者

    Fang Lin; Norris Christina; Johnson Karoline; Cui Xiaoxing; Sun Jiaqi; Teng Yanbo; Tian Enze; Xu Wei; Lig Zhen; Mo Jinhan; Schauer James Jay; Black Marilyn; Bergin Mike; Zhang Jim; Zhang Yinping;

  • 作者单位

    Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China|Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China;

    Duke Univ, Civil & Environm Engn, Durham, NC 27708 USA;

    Duke Univ, Civil & Environm Engn, Durham, NC 27708 USA;

    Duke Univ, Nicholas Sch Environm, Durham, NC 27710 USA;

    Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China;

    Duke Kunshan Univ, Global Hlth Res Ctr, Kunshan 215316, Peoples R China;

    Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China|Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China;

    China Acad Bldg Res, Beijing 100013, Peoples R China;

    Shanghai Gen Hosp, Dept Pediat, Shanghai 201620, Peoples R China;

    Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China|Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China;

    Univ Wisconsin, Coll Engn, Madison, WI 53706 USA;

    Underwriters Labs Inc, Chem Safety, 2211 Newmarket Pkwy,Suite 106, Marietta, GA 30067 USA;

    Duke Univ, Civil & Environm Engn, Durham, NC 27708 USA;

    Duke Univ, Nicholas Sch Environm, Durham, NC 27710 USA|Duke Kunshan Univ, Global Hlth Res Ctr, Kunshan 215316, Peoples R China;

    Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China|Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Nighttime sleep; Formaldehyde; Residence; Cancer risk; Air filtration; Asthmatic children;

    机译：夜间睡眠;甲醛;居住;癌症风险;空气过滤;哮喘儿童;

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